diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index c294aff4..ecc6b622 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
 
     runs-on: ${{ matrix.os }}
 
diff --git a/.github/workflows/run-e2-tests.yml b/.github/workflows/run-e2-tests.yml
index 1d7c3e17..3e35346b 100644
--- a/.github/workflows/run-e2-tests.yml
+++ b/.github/workflows/run-e2-tests.yml
@@ -18,7 +18,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
 
     runs-on: ${{ matrix.os }}
 
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index b21f2da4..d16f0722 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -15,7 +15,7 @@ jobs:
       fail-fast: true
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
+        python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
 
     runs-on: ${{ matrix.os }}
 
diff --git a/pyproject.toml b/pyproject.toml
index fcab3277..19edd041 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,15 +32,15 @@ authors = [{name="Tableau", email="github@tableau.com"}]
 license = "MIT"
 license-files = ["LICENSE"]
 readme = "res/README.md"
-requires-python = ">=3.9"  # https://devguide.python.org/versions/
+requires-python = ">=3.10"  # https://devguide.python.org/versions/
 classifiers = [
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
-  "Programming Language :: Python :: 3.13"
+  "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14"
 ]
 dependencies = [
     "appdirs",