diff --git a/python/pyproject.toml b/python/pyproject.toml
index 51577da..84052a1 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -13,7 +13,7 @@ dependencies = [
     "awscli>=1.29.21",
     "polars>=0.18.13",
     "matplotlib>=3.7.2",
-    "pytest>=7.4.0",
+    "pytest>=9.0.3",
     "seaborn>=0.12.2",
     "pulp>=2.7.0",
     "pandera>=0.0.0",
diff --git a/python/uv.lock b/python/uv.lock
index 20a99e5..b702f8a 100644
--- a/python/uv.lock
+++ b/python/uv.lock
@@ -1,5 +1,5 @@
 version = 1
-revision = 2
+revision = 3
 requires-python = ">=3.11"
 resolution-markers = [
     "python_full_version >= '3.12'",
@@ -769,7 +769,7 @@ requires-dist = [
     { name = "proselint", specifier = ">=0.13.0" },
     { name = "pulp", specifier = ">=2.7.0" },
     { name = "pydocstyle", specifier = ">=6.3.0" },
-    { name = "pytest", specifier = ">=7.4.0" },
+    { name = "pytest", specifier = ">=9.0.3" },
     { name = "requests", specifier = ">=2.31.0" },
     { name = "ruff", specifier = ">=0.1.5" },
     { name = "seaborn", specifier = ">=0.12.2" },
@@ -2046,17 +2046,18 @@ wheels = [
 
 [[package]]
 name = "pytest"
-version = "8.3.4"
+version = "9.0.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
     { name = "iniconfig" },
     { name = "packaging" },
     { name = "pluggy" },
+    { name = "pygments" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/05/35/30e0d83068951d90a01852cb1cef56e5d8a09d20c7f511634cc2f7e0372a/pytest-8.3.4.tar.gz", hash = "sha256:965370d062bce11e73868e0335abac31b4d3de0e82f4007408d242b4f8610761", size = 1445919, upload-time = "2024-12-01T12:54:25.98Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/7d/0d/549bd94f1a0a402dc8cf64563a117c0f3765662e2e668477624baeec44d5/pytest-9.0.3.tar.gz", hash = "sha256:b86ada508af81d19edeb213c681b1d48246c1a91d304c6c81a427674c17eb91c", size = 1572165, upload-time = "2026-04-07T17:16:18.027Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/11/92/76a1c94d3afee238333bc0a42b82935dd8f9cf8ce9e336ff87ee14d9e1cf/pytest-8.3.4-py3-none-any.whl", hash = "sha256:50e16d954148559c9a74109af1eaf0c945ba2d8f30f0a3d3335edde19788b6f6", size = 343083, upload-time = "2024-12-01T12:54:19.735Z" },
+    { url = "https://files.pythonhosted.org/packages/d4/24/a372aaf5c9b7208e7112038812994107bc65a84cd00e0354a88c2c77a617/pytest-9.0.3-py3-none-any.whl", hash = "sha256:2c5efc453d45394fdd706ade797c0a81091eccd1d6e4bccfcd476e2b8e0ab5d9", size = 375249, upload-time = "2026-04-07T17:16:16.13Z" },
 ]
 
 [[package]]