diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index b6b814f..f3e4cdd 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,12 +1,12 @@
 repos:
   - repo: https://github.com/psf/black
-    rev: 20.8b1
+    rev: 24.10.0
     hooks:
       - id: black
         args: [ "--safe", "--diff", "--color"]
         verbose: true
   - repo: https://github.com/psf/black
-    rev: 20.8b1
+    rev: 24.10.0
     hooks:
       - id: black
         args: [ "--safe", "--quiet"]
@@ -17,10 +17,10 @@ repos:
       - id: isort
         args: ["--profile", "black", "--filter-files"]
   - repo: https://github.com/asottile/blacken-docs
-    rev: v1.10.0
+    rev: 1.19.1
     hooks:
       - id: blacken-docs
-        additional_dependencies: [ black==20.8b1 ]
+        additional_dependencies: [ black==24.10.0 ]
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.0.1
     hooks:
@@ -41,10 +41,10 @@ repos:
       - id: python-use-type-annotations
       - id: rst-backticks
   - repo: https://github.com/pycqa/flake8
-    rev: 3.9.2
+    rev: 7.3.0
     hooks:
       - id: flake8
         language_version: python3
         additional_dependencies:
-          - flake8-typing-imports==1.9.0
-          - flake8-docstrings==1.5.0
+          - flake8-typing-imports==1.15.0
+          - flake8-docstrings==1.7.0
diff --git a/docs/list_labels_by_tracking_number.md b/docs/list_labels_by_tracking_number.md
index e26350c..2282caa 100644
--- a/docs/list_labels_by_tracking_number.md
+++ b/docs/list_labels_by_tracking_number.md
@@ -31,7 +31,9 @@ def list_labels_by_tracking_number_demo():
         {"api_key": api_key, "page_size": 75, "retries": 3, "timeout": 10}
     )
     try:
-        result = shipengine.list_labels_by_tracking_number(tracking_number="1ZXXXXXXXXXXXXXXXX")
+        result = shipengine.list_labels_by_tracking_number(
+            tracking_number="1ZXXXXXXXXXXXXXXXX"
+        )
         print("::SUCCESS::")
         print(result)
     except ShipEngineError as err:
diff --git a/poetry.lock b/poetry.lock
index c2b99ed..a98690e 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -211,36 +211,48 @@ tests = ["PyHamcrest (>=2.0.2)", "coveralls", "pytest (>=4.6)", "pytest-benchmar
 
 [[package]]
 name = "black"
-version = "22.12.0"
+version = "24.10.0"
 description = "The uncompromising code formatter."
 optional = false
-python-versions = ">=3.7"
+python-versions = ">=3.9"
 groups = ["dev"]
 files = [
-    {file = "black-22.12.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:9eedd20838bd5d75b80c9f5487dbcb06836a43833a37846cf1d8c1cc01cef59d"},
-    {file = "black-22.12.0-cp310-cp310-win_amd64.whl", hash = "sha256:159a46a4947f73387b4d83e87ea006dbb2337eab6c879620a3ba52699b1f4351"},
-    {file = "black-22.12.0-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:d30b212bffeb1e252b31dd269dfae69dd17e06d92b87ad26e23890f3efea366f"},
-    {file = "black-22.12.0-cp311-cp311-win_amd64.whl", hash = "sha256:7412e75863aa5c5411886804678b7d083c7c28421210180d67dfd8cf1221e1f4"},
-    {file = "black-22.12.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:c116eed0efb9ff870ded8b62fe9f28dd61ef6e9ddd28d83d7d264a38417dcee2"},
-    {file = "black-22.12.0-cp37-cp37m-win_amd64.whl", hash = "sha256:1f58cbe16dfe8c12b7434e50ff889fa479072096d79f0a7f25e4ab8e94cd8350"},
-    {file = "black-22.12.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:77d86c9f3db9b1bf6761244bc0b3572a546f5fe37917a044e02f3166d5aafa7d"},
-    {file = "black-22.12.0-cp38-cp38-win_amd64.whl", hash = "sha256:82d9fe8fee3401e02e79767016b4907820a7dc28d70d137eb397b92ef3cc5bfc"},
-    {file = "black-22.12.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:101c69b23df9b44247bd88e1d7e90154336ac4992502d4197bdac35dd7ee3320"},
-    {file = "black-22.12.0-cp39-cp39-win_amd64.whl", hash = "sha256:559c7a1ba9a006226f09e4916060982fd27334ae1998e7a38b3f33a37f7a2148"},
-    {file = "black-22.12.0-py3-none-any.whl", hash = "sha256:436cc9167dd28040ad90d3b404aec22cedf24a6e4d7de221bec2730ec0c97bcf"},
-    {file = "black-22.12.0.tar.gz", hash = "sha256:229351e5a18ca30f447bf724d007f890f97e13af070bb6ad4c0a441cd7596a2f"},
+    {file = "black-24.10.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:e6668650ea4b685440857138e5fe40cde4d652633b1bdffc62933d0db4ed9812"},
+    {file = "black-24.10.0-cp310-cp310-macosx_11_0_arm64.whl", hash = "sha256:1c536fcf674217e87b8cc3657b81809d3c085d7bf3ef262ead700da345bfa6ea"},
+    {file = "black-24.10.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:649fff99a20bd06c6f727d2a27f401331dc0cc861fb69cde910fe95b01b5928f"},
+    {file = "black-24.10.0-cp310-cp310-win_amd64.whl", hash = "sha256:fe4d6476887de70546212c99ac9bd803d90b42fc4767f058a0baa895013fbb3e"},
+    {file = "black-24.10.0-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:5a2221696a8224e335c28816a9d331a6c2ae15a2ee34ec857dcf3e45dbfa99ad"},
+    {file = "black-24.10.0-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:f9da3333530dbcecc1be13e69c250ed8dfa67f43c4005fb537bb426e19200d50"},
+    {file = "black-24.10.0-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:4007b1393d902b48b36958a216c20c4482f601569d19ed1df294a496eb366392"},
+    {file = "black-24.10.0-cp311-cp311-win_amd64.whl", hash = "sha256:394d4ddc64782e51153eadcaaca95144ac4c35e27ef9b0a42e121ae7e57a9175"},
+    {file = "black-24.10.0-cp312-cp312-macosx_10_13_x86_64.whl", hash = "sha256:b5e39e0fae001df40f95bd8cc36b9165c5e2ea88900167bddf258bacef9bbdc3"},
+    {file = "black-24.10.0-cp312-cp312-macosx_11_0_arm64.whl", hash = "sha256:d37d422772111794b26757c5b55a3eade028aa3fde43121ab7b673d050949d65"},
+    {file = "black-24.10.0-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:14b3502784f09ce2443830e3133dacf2c0110d45191ed470ecb04d0f5f6fcb0f"},
+    {file = "black-24.10.0-cp312-cp312-win_amd64.whl", hash = "sha256:30d2c30dc5139211dda799758559d1b049f7f14c580c409d6ad925b74a4208a8"},
+    {file = "black-24.10.0-cp313-cp313-macosx_10_13_x86_64.whl", hash = "sha256:1cbacacb19e922a1d75ef2b6ccaefcd6e93a2c05ede32f06a21386a04cedb981"},
+    {file = "black-24.10.0-cp313-cp313-macosx_11_0_arm64.whl", hash = "sha256:1f93102e0c5bb3907451063e08b9876dbeac810e7da5a8bfb7aeb5a9ef89066b"},
+    {file = "black-24.10.0-cp313-cp313-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:ddacb691cdcdf77b96f549cf9591701d8db36b2f19519373d60d31746068dbf2"},
+    {file = "black-24.10.0-cp313-cp313-win_amd64.whl", hash = "sha256:680359d932801c76d2e9c9068d05c6b107f2584b2a5b88831c83962eb9984c1b"},
+    {file = "black-24.10.0-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:17374989640fbca88b6a448129cd1745c5eb8d9547b464f281b251dd00155ccd"},
+    {file = "black-24.10.0-cp39-cp39-macosx_11_0_arm64.whl", hash = "sha256:63f626344343083322233f175aaf372d326de8436f5928c042639a4afbbf1d3f"},
+    {file = "black-24.10.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.manylinux_2_28_x86_64.whl", hash = "sha256:ccfa1d0cb6200857f1923b602f978386a3a2758a65b52e0950299ea014be6800"},
+    {file = "black-24.10.0-cp39-cp39-win_amd64.whl", hash = "sha256:2cd9c95431d94adc56600710f8813ee27eea544dd118d45896bb734e9d7a0dc7"},
+    {file = "black-24.10.0-py3-none-any.whl", hash = "sha256:3bb2b7a1f7b685f85b11fed1ef10f8a9148bceb49853e47a294a3dd963c1dd7d"},
+    {file = "black-24.10.0.tar.gz", hash = "sha256:846ea64c97afe3bc677b761787993be4991810ecc7a4a937816dd6bddedc4875"},
 ]
 
 [package.dependencies]
 click = ">=8.0.0"
 mypy-extensions = ">=0.4.3"
+packaging = ">=22.0"
 pathspec = ">=0.9.0"
 platformdirs = ">=2"
-tomli = {version = ">=1.1.0", markers = "python_full_version < \"3.11.0a7\""}
+tomli = {version = ">=1.1.0", markers = "python_version < \"3.11\""}
+typing-extensions = {version = ">=4.0.1", markers = "python_version < \"3.11\""}
 
 [package.extras]
 colorama = ["colorama (>=0.4.3)"]
-d = ["aiohttp (>=3.7.4)"]
+d = ["aiohttp (>=3.10)"]
 jupyter = ["ipython (>=7.8.0)", "tokenize-rt (>=3.2.0)"]
 uvloop = ["uvloop (>=0.15.2)"]
 
@@ -481,20 +493,20 @@ files = [
 
 [[package]]
 name = "flake8"
-version = "6.1.0"
+version = "7.3.0"
 description = "the modular source code checker: pep8 pyflakes and co"
 optional = false
-python-versions = ">=3.8.1"
+python-versions = ">=3.9"
 groups = ["dev"]
 files = [
-    {file = "flake8-6.1.0-py2.py3-none-any.whl", hash = "sha256:ffdfce58ea94c6580c77888a86506937f9a1a227dfcd15f245d694ae20a6b6e5"},
-    {file = "flake8-6.1.0.tar.gz", hash = "sha256:d5b3857f07c030bdb5bf41c7f53799571d75c4491748a3adcd47de929e34cd23"},
+    {file = "flake8-7.3.0-py2.py3-none-any.whl", hash = "sha256:b9696257b9ce8beb888cdbe31cf885c90d31928fe202be0889a7cdafad32f01e"},
+    {file = "flake8-7.3.0.tar.gz", hash = "sha256:fe044858146b9fc69b551a4b490d69cf960fcb78ad1edcb84e7fbb1b4a8e3872"},
 ]
 
 [package.dependencies]
 mccabe = ">=0.7.0,<0.8.0"
-pycodestyle = ">=2.11.0,<2.12.0"
-pyflakes = ">=3.1.0,<3.2.0"
+pycodestyle = ">=2.14.0,<2.15.0"
+pyflakes = ">=3.4.0,<3.5.0"
 
 [[package]]
 name = "frozenlist"
@@ -934,19 +946,16 @@ files = [
 
 [[package]]
 name = "packaging"
-version = "21.0"
+version = "26.1"
 description = "Core utilities for Python packages"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.8"
 groups = ["dev"]
 files = [
-    {file = "packaging-21.0-py3-none-any.whl", hash = "sha256:c86254f9220d55e31cc94d69bade760f0847da8000def4dfe1c6b872fd14ff14"},
-    {file = "packaging-21.0.tar.gz", hash = "sha256:7dc96269f53a4ccec5c0670940a4281106dd0bb343f47b7471f779df49c2fbe7"},
+    {file = "packaging-26.1-py3-none-any.whl", hash = "sha256:5d9c0669c6285e491e0ced2eee587eaf67b670d94a19e94e3984a481aba6802f"},
+    {file = "packaging-26.1.tar.gz", hash = "sha256:f042152b681c4bfac5cae2742a55e103d27ab2ec0f3d88037136b6bfe7c9c5de"},
 ]
 
-[package.dependencies]
-pyparsing = ">=2.0.2"
-
 [[package]]
 name = "pathspec"
 version = "0.9.0"
@@ -1155,26 +1164,26 @@ files = [
 
 [[package]]
 name = "pycodestyle"
-version = "2.11.1"
+version = "2.14.0"
 description = "Python style guide checker"
 optional = false
-python-versions = ">=3.8"
+python-versions = ">=3.9"
 groups = ["dev"]
 files = [
-    {file = "pycodestyle-2.11.1-py2.py3-none-any.whl", hash = "sha256:44fe31000b2d866f2e41841b18528a505fbd7fef9017b04eff4e2648a0fadc67"},
-    {file = "pycodestyle-2.11.1.tar.gz", hash = "sha256:41ba0e7afc9752dfb53ced5489e89f8186be00e599e712660695b7a75ff2663f"},
+    {file = "pycodestyle-2.14.0-py2.py3-none-any.whl", hash = "sha256:dd6bf7cb4ee77f8e016f9c8e74a35ddd9f67e1d5fd4184d86c3b98e07099f42d"},
+    {file = "pycodestyle-2.14.0.tar.gz", hash = "sha256:c4b5b517d278089ff9d0abdec919cd97262a3367449ea1c8b49b91529167b783"},
 ]
 
 [[package]]
 name = "pyflakes"
-version = "3.1.0"
+version = "3.4.0"
 description = "passive checker of Python programs"
 optional = false
-python-versions = ">=3.8"
+python-versions = ">=3.9"
 groups = ["dev"]
 files = [
-    {file = "pyflakes-3.1.0-py2.py3-none-any.whl", hash = "sha256:4132f6d49cb4dae6819e5379898f2b8cce3c5f23994194c24b77d5da2e36f774"},
-    {file = "pyflakes-3.1.0.tar.gz", hash = "sha256:a0aae034c444db0071aa077972ba4768d40c830d9539fd45bf4cd3f8f6992efc"},
+    {file = "pyflakes-3.4.0-py2.py3-none-any.whl", hash = "sha256:f742a7dbd0d9cb9ea41e9a24a918996e8170c799fa528688d40dd582c8265f4f"},
+    {file = "pyflakes-3.4.0.tar.gz", hash = "sha256:b24f96fafb7d2ab0ec5075b7350b3d2d2218eab42003821c06344973d3ea2f58"},
 ]
 
 [[package]]
@@ -1189,18 +1198,6 @@ files = [
     {file = "Pygments-2.9.0.tar.gz", hash = "sha256:a18f47b506a429f6f4b9df81bb02beab9ca21d0a5fee38ed15aef65f0545519f"},
 ]
 
-[[package]]
-name = "pyparsing"
-version = "2.4.7"
-description = "Python parsing module"
-optional = false
-python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-groups = ["dev"]
-files = [
-    {file = "pyparsing-2.4.7-py2.py3-none-any.whl", hash = "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"},
-    {file = "pyparsing-2.4.7.tar.gz", hash = "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1"},
-]
-
 [[package]]
 name = "pytest"
 version = "7.4.4"
@@ -1637,7 +1634,7 @@ description = "A lil' TOML parser"
 optional = false
 python-versions = ">=3.8"
 groups = ["dev"]
-markers = "python_full_version < \"3.11.0a7\""
+markers = "python_version == \"3.10\""
 files = [
     {file = "tomli-2.3.0-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:88bd15eb972f3664f5ed4b57c1634a97153b4bac4479dcb6a495f41921eb7f45"},
     {file = "tomli-2.3.0-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:883b1c0d6398a6a9d29b508c331fa56adbcdff647f6ace4dfca0f50e90dfd0ba"},
@@ -1711,16 +1708,16 @@ testing = ["flaky (>=3.4.0)", "freezegun (>=0.3.11)", "pathlib2 (>=2.3.3) ; pyth
 
 [[package]]
 name = "typing-extensions"
-version = "3.10.0.0"
-description = "Backported and Experimental Type Hints for Python 3.5+"
+version = "4.15.0"
+description = "Backported and Experimental Type Hints for Python 3.9+"
 optional = false
-python-versions = "*"
-groups = ["main"]
+python-versions = ">=3.9"
+groups = ["main", "dev"]
 files = [
-    {file = "typing_extensions-3.10.0.0-py2-none-any.whl", hash = "sha256:0ac0f89795dd19de6b97debb0c6af1c70987fd80a2d62d1958f7e56fcc31b497"},
-    {file = "typing_extensions-3.10.0.0-py3-none-any.whl", hash = "sha256:779383f6086d90c99ae41cf0ff39aac8a7937a9283ce0a414e5dd782f4c94a84"},
-    {file = "typing_extensions-3.10.0.0.tar.gz", hash = "sha256:50b6f157849174217d0656f99dc82fe932884fb250826c18350e159ec6cdf342"},
+    {file = "typing_extensions-4.15.0-py3-none-any.whl", hash = "sha256:f0fa19c6845758ab08074a0cfa8b7aecb71c999ca73d62883bc25cc018c4e548"},
+    {file = "typing_extensions-4.15.0.tar.gz", hash = "sha256:0cea48d173cc12fa28ecabc3b837ea3cf6f38c6d1136f85cbaaf598984861466"},
 ]
+markers = {dev = "python_version == \"3.10\""}
 
 [[package]]
 name = "typing-inspect"
@@ -1959,4 +1956,4 @@ propcache = ">=0.2.1"
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.10"
-content-hash = "8a751ccf02051beb65a2534ab2fce4ac41be0d119c33d23f145b848026f90549"
+content-hash = "64fd65e4d772fe43ab6ea05d9eb69792f5e0f7d399bf1c754d7afd9d6cc585b7"
diff --git a/pyproject.toml b/pyproject.toml
index b6a7d70..5d5ab8f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,8 +44,8 @@ fuuid = "^0.1.0"
 pytest = "^7.0.0"
 pytest-cov = "^2.11.1"
 pytest-mock = "^3.6.1"
-black = "^22.0.0"
-flake8 = "^6.0.0"
+black = "^24.0.0"
+flake8 = "^7.0.0"
 Sphinx = "^3.5.2"
 tox = "^3.23.0"
 coverage = "^5.5"
@@ -58,7 +58,6 @@ responses = "^0.13.3"
 [tool.black]
 line-length = 100
 target-version = ["py310"]
-safe = true
 
 [tool.isort]
 profile = "black"
diff --git a/shipengine/__init__.py b/shipengine/__init__.py
index 6a4ee49..46fe4a4 100644
--- a/shipengine/__init__.py
+++ b/shipengine/__init__.py
@@ -1,4 +1,5 @@
 """ShipEngine SDK."""
+
 __version__ = "2.0.5"
 
 import logging
diff --git a/shipengine/enums/__init__.py b/shipengine/enums/__init__.py
index e720b92..ad4ed5d 100644
--- a/shipengine/enums/__init__.py
+++ b/shipengine/enums/__init__.py
@@ -1,4 +1,5 @@
 """ShipEngine SDK Enumerations"""
+
 from enum import Enum
 
 from .country import Country
diff --git a/shipengine/enums/country.py b/shipengine/enums/country.py
index 54fdde1..a676a88 100644
--- a/shipengine/enums/country.py
+++ b/shipengine/enums/country.py
@@ -1,4 +1,5 @@
 """An enumeration of valid/supported countries."""
+
 from enum import Enum
 
 
diff --git a/shipengine/enums/error_code.py b/shipengine/enums/error_code.py
index 2813eae..1ade1ba 100644
--- a/shipengine/enums/error_code.py
+++ b/shipengine/enums/error_code.py
@@ -1,4 +1,5 @@
 """Enumeration of error sources returned by ShipEngine API."""
+
 from enum import Enum
 
 
diff --git a/shipengine/enums/error_source.py b/shipengine/enums/error_source.py
index 58a1ea6..b7e6162 100644
--- a/shipengine/enums/error_source.py
+++ b/shipengine/enums/error_source.py
@@ -1,4 +1,5 @@
 """Enumeration of error sources returned by ShipEngine API."""
+
 from enum import Enum
 
 
diff --git a/shipengine/enums/error_type.py b/shipengine/enums/error_type.py
index 59e8dec..c23a606 100644
--- a/shipengine/enums/error_type.py
+++ b/shipengine/enums/error_type.py
@@ -1,9 +1,13 @@
 """Enumeration of error types returned by ShipEngine API."""
+
 from enum import Enum
 
 
 class ErrorType(Enum):
-    """Indicates the type of an error. Think of this as a broad category rather than a specific error."""
+    """Indicates the type of an error.
+
+    Think of this as a broad category rather than a specific error.
+    """
 
     ACCOUNT_STATUS = "account_status"
     """
diff --git a/shipengine/enums/regex_patterns.py b/shipengine/enums/regex_patterns.py
index 78d38c5..d034f5a 100644
--- a/shipengine/enums/regex_patterns.py
+++ b/shipengine/enums/regex_patterns.py
@@ -1,4 +1,5 @@
 """Enumeration of Regular Expression patterns used in the ShipEngine SDK."""
+
 from enum import Enum
 
 
diff --git a/shipengine/errors/__init__.py b/shipengine/errors/__init__.py
index a1e7968..2162ccf 100644
--- a/shipengine/errors/__init__.py
+++ b/shipengine/errors/__init__.py
@@ -1,4 +1,5 @@
 """Errors that will be raised through-out the ShipEngine SDK."""
+
 import json
 from typing import Optional
 
@@ -29,7 +30,8 @@ def _are_enums_valid(self):
             pass  # noqa
         elif not does_member_value_exist(self.error_source, ErrorSource):
             raise ValueError(
-                f"Error source must be a member of ErrorSource enum - [{self.error_source}] provided."
+                "Error source must be a member of ErrorSource enum - "
+                f"[{self.error_source}] provided."
             )
 
         if self.error_type is None:
@@ -43,7 +45,7 @@ def _are_enums_valid(self):
             pass  # noqa
         elif not does_member_value_exist(self.error_code, ErrorCode):
             raise ValueError(
-                f"Error type must be a member of ErrorCode enum - [{self.error_code}] provided."
+                "Error type must be a member of ErrorCode enum - " f"[{self.error_code}] provided."
             )
 
     def to_dict(self):
@@ -80,7 +82,7 @@ def __init__(
         error_source: Optional[str] = None,
         request_id: Optional[str] = None,
     ) -> None:
-        """An exception that indicates the configured timeout has been reached for a given request."""
+        """An exception indicating the configured timeout was reached for a given request."""
         self.retry_after = retry_after
         self.error_source = error_source
         self.request_id = request_id
diff --git a/shipengine/http_client/__init__.py b/shipengine/http_client/__init__.py
index 96e8ffd..2d1238a 100644
--- a/shipengine/http_client/__init__.py
+++ b/shipengine/http_client/__init__.py
@@ -1,2 +1,3 @@
 """Synchronous HTTP Client for ShipEngine SDK."""
+
 from .client import ShipEngineClient
diff --git a/shipengine/http_client/client.py b/shipengine/http_client/client.py
index fa6155c..825ad57 100644
--- a/shipengine/http_client/client.py
+++ b/shipengine/http_client/client.py
@@ -1,4 +1,5 @@
 """A synchronous HTTP Client for the ShipEngine SDK."""
+
 import json
 import os
 import platform
@@ -133,7 +134,10 @@ def _send_request(
             resp: Response = client.send(request=prepared_req, timeout=config.timeout)
         except RequestException as err:
             raise ShipEngineError(
-                message=f"An unknown error occurred while calling the ShipEngine {http_method} API:\n {err.response}",
+                message=(
+                    f"An unknown error occurred while calling the ShipEngine {http_method} "
+                    f"API:\n {err.response}"
+                ),
                 error_source=ErrorSource.SHIPENGINE.value,
                 error_type=ErrorType.SYSTEM.value,
                 error_code=ErrorCode.UNSPECIFIED.value,
@@ -186,4 +190,7 @@ def _derive_user_agent() -> str:
         python_version: str = platform.python_version()
         python_implementation: str = platform.python_implementation()
 
-        return f"shipengine-python/{sdk_version} {platform_os}/{os_version} {python_implementation}/{python_version}"
+        return (
+            f"shipengine-python/{sdk_version} {platform_os}/{os_version} "
+            f"{python_implementation}/{python_version}"
+        )
diff --git a/shipengine/shipengine.py b/shipengine/shipengine.py
index d0e30e1..8377a0b 100644
--- a/shipengine/shipengine.py
+++ b/shipengine/shipengine.py
@@ -1,4 +1,5 @@
 """The entrypoint to the ShipEngine API SDK."""
+
 from typing import Any, Dict, List, Union
 
 from shipengine.enums import Endpoints
@@ -33,16 +34,18 @@ def create_label_from_rate_id(
         self, rate_id: str, params: Dict[str, Any], config: Union[str, Dict[str, Any]] = None
     ) -> Dict[str, Any]:
         """
-        When retrieving rates for shipments using the /rates endpoint, the returned information contains a rateId
-        property that can be used to generate a label without having to refill in the shipment information repeatedly.
+        When retrieving rates for shipments using the /rates endpoint, the returned information
+        contains a rateId property that can be used to generate a label without having to refill
+        in the shipment information repeatedly.
         See: https://shipengine.github.io/shipengine-openapi/#operation/create_label_from_rate
 
         :param str rate_id: The rate_id you wish to create a shipping label for.
-        :param Dict[str, Any] params: A dictionary of label params that will dictate the label display and
-        level of verification.
-        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration to set new values
-        for properties of the global ShipEngineConfig object.
-        :returns Dict[str, Any]: A label that corresponds the to shipment details for the rate_id provided.
+        :param Dict[str, Any] params: A dictionary of label params that will dictate the label
+        display and level of verification.
+        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration
+        to set new values for properties of the global ShipEngineConfig object.
+        :returns Dict[str, Any]: A label that corresponds the to shipment details for the
+        rate_id provided.
         """
         config = self.config.merge(new_config=config)
         return self.client.post(endpoint=f"v1/labels/rates/{rate_id}", params=params, config=config)
@@ -55,8 +58,8 @@ def create_label_from_shipment(
         See: https://shipengine.github.io/shipengine-openapi/#operation/create_label
 
         :param Dict[str, Any] shipment: A dictionary of shipment details for the label creation.
-        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration to set new values
-        for properties of the global ShipEngineConfig object.
+        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration
+        to set new values for properties of the global ShipEngineConfig object.
         :returns Dict[str, Any]: A label that corresponds the to shipment details provided.
         """
         config = self.config.merge(new_config=config)
@@ -73,8 +76,8 @@ def get_rate_estimate(
 
         :param Dict[str, Any] params: A dictionary of rate estimate params including carrier_ids,
         origin/destination postal codes and country codes, and package weight.
-        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration to set new values
-        for properties of the global ShipEngineConfig object.
+        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration
+        to set new values for properties of the global ShipEngineConfig object.
         :returns list[Dict[str, Any]]: A list of rate estimates from the specified carriers.
         """
         config = self.config.merge(new_config=config)
@@ -90,8 +93,8 @@ def get_rates_from_shipment(
         See: https://shipengine.github.io/shipengine-openapi/#operation/calculate_rates
 
         :param Dict[str, Any] shipment: A dictionary of shipment details for the label creation.
-        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration to set new values
-        for properties of the global ShipEngineConfig object.
+        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration
+        to set new values for properties of the global ShipEngineConfig object.
         :returns Dict[str, Any]: A label that corresponds the to shipment details provided.
         """
         config = self.config.merge(new_config=config)
@@ -103,8 +106,8 @@ def list_carriers(self, config: Dict[str, Any] = None) -> Dict[str, Any]:
         """
         Fetch the carrier accounts connected to your ShipEngine Account.
 
-        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration to set new values
-        for properties of the global ShipEngineConfig object.
+        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration
+        to set new values for properties of the global ShipEngineConfig object.
         :returns Dict[str, Any]: The carrier accounts associated with a given ShipEngine Account.
         """
         config = self.config.merge(new_config=config)
@@ -119,8 +122,8 @@ def track_package_by_label_id(
 
         :param str label_id: The label_id for a shipment you wish to get tracking information for.
         (Best option if you create labels via ShipEngine API)
-        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration to set new values
-        for properties of the global ShipEngineConfig object.
+        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration
+        to set new values for properties of the global ShipEngineConfig object.
         :returns Dict[str, Any]: Tracking information corresponding to the label_id provided.
         """
         config = self.config.merge(new_config=config)
@@ -134,9 +137,10 @@ def track_package_by_carrier_code_and_tracking_number(
         See: https://shipengine.github.io/shipengine-openapi/#operation/get_tracking_log
 
         :param str carrier_code: The carrier_code for the carrier servicing the shipment.
-        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration to set new values
-        for properties of the global ShipEngineConfig object.
-        :returns Dict[str, Any]: Tracking information corresponding to the carrier_code and tracking_number provided.
+        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration
+        to set new values for properties of the global ShipEngineConfig object.
+        :returns Dict[str, Any]: Tracking information corresponding to the carrier_code and
+        tracking_number provided.
         """
         config = self.config.merge(new_config=config)
         return self.client.get(
@@ -148,15 +152,16 @@ def validate_addresses(
         self, address: List[Dict[str, Any]], config: Union[str, Dict[str, Any]] = None
     ) -> Dict[str, Any]:
         """
-        Address validation ensures accurate addresses and can lead to reduced shipping costs by preventing address
-        correction surcharges. ShipEngine cross references multiple databases to validate addresses and identify
-        potential deliverability issues.
+        Address validation ensures accurate addresses and can lead to reduced shipping costs
+        by preventing address correction surcharges. ShipEngine cross references multiple
+        databases to validate addresses and identify potential deliverability issues.
         See: https://shipengine.github.io/shipengine-openapi/#operation/validate_address
 
         :param List[Dict[str, Any]] address: A list containing the address(es) to be validated.
-        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration to set new values
-        for properties of the global ShipEngineConfig object.
-        :returns: Dict[str, Any]: The response from ShipEngine API including the validated and normalized address.
+        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration
+        to set new values for properties of the global ShipEngineConfig object.
+        :returns: Dict[str, Any]: The response from ShipEngine API including the validated
+        and normalized address.
         """
         config = self.config.merge(new_config=config)
         return self.client.post(
@@ -171,10 +176,10 @@ def void_label_by_label_id(
         See: https://shipengine.github.io/shipengine-openapi/#operation/void_label
 
         :param str label_id: The label_id of the label you wish to void.
-        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration to set new values
-        for properties of the global ShipEngineConfig object.
-        :returns Dict[str, Any]: The response from ShipEngine API confirming the label was successfully voided or
-        unable to be voided.
+        :param Union[str, Dict[str, Any], ShipEngineConfig] config: Method level configuration
+        to set new values for properties of the global ShipEngineConfig object.
+        :returns Dict[str, Any]: The response from ShipEngine API confirming the label was
+        successfully voided or unable to be voided.
         """
         config = self.config.merge(new_config=config)
         return self.client.put(endpoint=f"v1/labels/{label_id}/void", config=config)
@@ -186,8 +191,8 @@ def list_labels_by_tracking_number(
         Lists labels with the specified tracking_number
 
         :param str tracking_number: The tracking_number of the label(s) you wish to get.
-        :returns Dict[str, Any]: The response from ShipEngine API including the label(s) with the specified 
-        tracking_number.
+        :returns Dict[str, Any]: The response from ShipEngine API including the label(s) with
+        the specified tracking_number.
         """
         config = self.config.merge(new_config=config)
         return self.client.get(
diff --git a/shipengine/shipengine_config.py b/shipengine/shipengine_config.py
index 60834b0..adc3fdc 100644
--- a/shipengine/shipengine_config.py
+++ b/shipengine/shipengine_config.py
@@ -1,4 +1,5 @@
 """The global configuration object for the ShipEngine SDK."""
+
 import json
 from typing import Any, Dict, Optional
 
@@ -59,25 +60,35 @@ def merge(self, new_config: Optional[Dict[str, Any]] = None):
         else:
             config = dict()
 
-            config.update(
-                {"api_key": new_config["api_key"]}
-            ) if "api_key" in new_config else config.update({"api_key": self.api_key})
-
-            config.update(
-                {"base_uri": new_config["base_uri"]}
-            ) if "base_uri" in new_config else config.update({"base_uri": self.base_uri})
-
-            config.update(
-                {"page_size": new_config["page_size"]}
-            ) if "page_size" in new_config else config.update({"page_size": self.page_size})
-
-            config.update(
-                {"retries": new_config["retries"]}
-            ) if "retries" in new_config else config.update({"retries": self.retries})
-
-            config.update(
-                {"timeout": new_config["timeout"]}
-            ) if "timeout" in new_config else config.update({"timeout": self.timeout})
+            (
+                config.update({"api_key": new_config["api_key"]})
+                if "api_key" in new_config
+                else config.update({"api_key": self.api_key})
+            )
+
+            (
+                config.update({"base_uri": new_config["base_uri"]})
+                if "base_uri" in new_config
+                else config.update({"base_uri": self.base_uri})
+            )
+
+            (
+                config.update({"page_size": new_config["page_size"]})
+                if "page_size" in new_config
+                else config.update({"page_size": self.page_size})
+            )
+
+            (
+                config.update({"retries": new_config["retries"]})
+                if "retries" in new_config
+                else config.update({"retries": self.retries})
+            )
+
+            (
+                config.update({"timeout": new_config["timeout"]})
+                if "timeout" in new_config
+                else config.update({"timeout": self.timeout})
+            )
 
             return ShipEngineConfig(config)
 
diff --git a/shipengine/util/__init__.py b/shipengine/util/__init__.py
index bd4b611..f9d9672 100644
--- a/shipengine/util/__init__.py
+++ b/shipengine/util/__init__.py
@@ -1,4 +1,5 @@
 """Testing a string manipulation helper function."""
+
 from .sdk_assertions import *  # noqa
 
 
diff --git a/shipengine/util/sdk_assertions.py b/shipengine/util/sdk_assertions.py
index fa6e83b..83503aa 100644
--- a/shipengine/util/sdk_assertions.py
+++ b/shipengine/util/sdk_assertions.py
@@ -1,4 +1,5 @@
 """Assertion helper functions."""
+
 import re
 from typing import Any, Dict, List
 
@@ -67,7 +68,10 @@ def is_state_valid(state: str) -> None:
 
 
 def is_postal_code_valid(postal_code: str) -> None:
-    """Checks that the given postal code is alpha-numeric. A match would be '78756-123', '02215' or 'M6K 3C3'"""
+    """Check that the given postal code is alpha-numeric.
+
+    A match would be '78756-123', '02215' or 'M6K 3C3'.
+    """
     pattern = re.compile(r"^[a-zA-Z0-9\s-]*$")
 
     if not pattern.match(postal_code) or postal_code == "":
@@ -178,7 +182,10 @@ def timeout_validation_error_assertions(error) -> None:
 def check_response_for_errors(
     status_code: int, response_body: Dict[str, Any], response_headers, config
 ) -> None:
-    """Checks response and status_code for 400, 404, 429, and 500 error cases and raises an approved exception."""
+    """Check response and status_code for 400, 404, 429, and 500 error cases.
+
+    Raises an approved exception when an error is detected.
+    """
 
     if status_code == 400:
         error = response_body["errors"][0]
diff --git a/tests/errors/test_errors.py b/tests/errors/test_errors.py
index dea3afc..919e475 100644
--- a/tests/errors/test_errors.py
+++ b/tests/errors/test_errors.py
@@ -1,4 +1,5 @@
 """Tests for the ShipEngine SDK Errors"""
+
 import pytest
 
 from shipengine.errors import (
diff --git a/tests/services/test_create_label_from_rate_id.py b/tests/services/test_create_label_from_rate_id.py
index 7a67f67..540e92c 100644
--- a/tests/services/test_create_label_from_rate_id.py
+++ b/tests/services/test_create_label_from_rate_id.py
@@ -1,4 +1,5 @@
 """Testing the create label from rate ID functionality in the ShipEngine SDK."""
+
 import json
 import unittest
 import urllib.parse as urlparse
diff --git a/tests/services/test_create_label_from_shipment.py b/tests/services/test_create_label_from_shipment.py
index 304efd2..ac60e70 100644
--- a/tests/services/test_create_label_from_shipment.py
+++ b/tests/services/test_create_label_from_shipment.py
@@ -1,4 +1,5 @@
 """Testing the create label from shipment functionality."""
+
 import json
 import unittest
 import urllib.parse as urlparse
diff --git a/tests/services/test_list_carriers.py b/tests/services/test_list_carriers.py
index cd3bd35..076b27a 100644
--- a/tests/services/test_list_carriers.py
+++ b/tests/services/test_list_carriers.py
@@ -1,4 +1,5 @@
 """Testing the list_carriers functionality in the ShipEngine SDK."""
+
 import json
 import unittest
 import urllib.parse as urlparse
@@ -173,7 +174,10 @@ def test_list_carriers(self) -> None:
                                         "package_id": "None",
                                         "package_code": "non_rectangular",
                                         "name": "Non Rectangular Package",
-                                        "description": "Non-Rectangular package type that is cylindrical in shape.",
+                                        "description": (
+                                            "Non-Rectangular package type that is "
+                                            "cylindrical in shape."
+                                        ),
                                     },
                                     {
                                         "package_id": "None",
@@ -508,7 +512,9 @@ def test_list_carriers(self) -> None:
                                     {
                                         "name": "shipper_release",
                                         "default_value": "False",
-                                        "description": "Driver may release package without signature",
+                                        "description": (
+                                            "Driver may release package without signature"
+                                        ),
                                     },
                                 ],
                             },
diff --git a/tests/services/test_validate_addresses.py b/tests/services/test_validate_addresses.py
index 2483700..7e3ee7a 100644
--- a/tests/services/test_validate_addresses.py
+++ b/tests/services/test_validate_addresses.py
@@ -1,4 +1,5 @@
 """Testing the validate_addresses functionality in the ShipEngine SDK."""
+
 import json
 import unittest
 import urllib.parse as urlparse
diff --git a/tests/test_shipengine.py b/tests/test_shipengine.py
index 462d267..bf9d1cb 100644
--- a/tests/test_shipengine.py
+++ b/tests/test_shipengine.py
@@ -1,4 +1,5 @@
 """Testing the ShipEngine object."""
+
 import pytest
 
 from shipengine import ShipEngine
diff --git a/tests/test_shipengine_config.py b/tests/test_shipengine_config.py
index c1526cf..0d3a587 100644
--- a/tests/test_shipengine_config.py
+++ b/tests/test_shipengine_config.py
@@ -1,4 +1,5 @@
 """Testing the ShipEngineConfig object."""
+
 import pytest
 
 from shipengine import ShipEngine, ShipEngineConfig
diff --git a/tests/test_snake_case_converter.py b/tests/test_snake_case_converter.py
index fbd8f78..db4dde4 100644
--- a/tests/test_snake_case_converter.py
+++ b/tests/test_snake_case_converter.py
@@ -1,4 +1,5 @@
 """Test test conversion helper function. snake_case -> camelCase."""
+
 from shipengine.util import snake_to_camel
 
 
diff --git a/tests/util/__init__.py b/tests/util/__init__.py
index c8fef9e..af6a943 100644
--- a/tests/util/__init__.py
+++ b/tests/util/__init__.py
@@ -1,2 +1,3 @@
 """Test helper functions and test data as functions used throughout the test suite."""
+
 from .test_helpers import *  # noqa
diff --git a/tests/util/test_helpers.py b/tests/util/test_helpers.py
index 74baf81..cf833ec 100644
--- a/tests/util/test_helpers.py
+++ b/tests/util/test_helpers.py
@@ -1,4 +1,5 @@
 """Test data as functions and common assertion helper functions."""
+
 from typing import Any, Dict, List
 
 from shipengine import ShipEngine, ShipEngineConfig
@@ -26,7 +27,7 @@ def stub_shipengine_config() -> ShipEngineConfig:
 
 
 def configurable_stub_shipengine_instance(config: Dict[str, any]) -> ShipEngine:
-    """"""
+    """Return a test instance of the ShipEngine object with the given config."""
     return ShipEngine(config=config)