diff --git a/sandbox/poetry.lock b/sandbox/poetry.lock
index d9487641..949d6fe5 100644
--- a/sandbox/poetry.lock
+++ b/sandbox/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.3.2 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.2.1 and should not be changed by hand.
 
 [[package]]
 name = "black"
@@ -528,20 +528,20 @@ windows-terminal = ["colorama (>=0.4.6)"]
 
 [[package]]
 name = "pytest"
-version = "8.4.2"
+version = "9.0.3"
 description = "pytest: simple powerful testing with Python"
 optional = false
-python-versions = ">=3.9"
+python-versions = ">=3.10"
 groups = ["dev"]
 files = [
-    {file = "pytest-8.4.2-py3-none-any.whl", hash = "sha256:872f880de3fc3a5bdc88a11b39c9710c3497a547cfa9320bc3c5e62fbf272e79"},
-    {file = "pytest-8.4.2.tar.gz", hash = "sha256:86c0d0b93306b961d58d62a4db4879f27fe25513d4b969df351abdddb3c30e01"},
+    {file = "pytest-9.0.3-py3-none-any.whl", hash = "sha256:2c5efc453d45394fdd706ade797c0a81091eccd1d6e4bccfcd476e2b8e0ab5d9"},
+    {file = "pytest-9.0.3.tar.gz", hash = "sha256:b86ada508af81d19edeb213c681b1d48246c1a91d304c6c81a427674c17eb91c"},
 ]
 
 [package.dependencies]
 colorama = {version = ">=0.4", markers = "sys_platform == \"win32\""}
-iniconfig = ">=1"
-packaging = ">=20"
+iniconfig = ">=1.0.1"
+packaging = ">=22"
 pluggy = ">=1.5,<2"
 pygments = ">=2.7.2"
 
@@ -726,4 +726,4 @@ watchdog = ["watchdog (>=2.3)"]
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.13"
-content-hash = "34613f0af472092b294077f6039a08810e1ab9cd777da7098969be48adb97725"
+content-hash = "05458ab8f8d0e323bb64eb7c1144e07867c270cebfb8a9c70a7579478a0b89e9"
diff --git a/sandbox/pyproject.toml b/sandbox/pyproject.toml
index 64c5b3f9..144eee9c 100644
--- a/sandbox/pyproject.toml
+++ b/sandbox/pyproject.toml
@@ -14,5 +14,5 @@ pyyaml = "^6.0.2"
 [tool.poetry.dev-dependencies]
 flake8 = "^7.3.0"
 black = "^26.3.0"
-pytest = "^8.1.1"
+pytest = "^9.0.3"
 pytest-cov = "^5.0.0"