diff --git a/pyproject.toml b/pyproject.toml
index d5b290e5..81259896 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -68,7 +68,7 @@ dev = [
     "mypy>=1.8.0,<2.0.0",
     "ruff>=0.11.6,<1.0.0",
     "pre-commit>=4.0.0,<5.0.0",
-    "pytest>=8.3.3,<9.0.0",
+    "pytest>=9.0.3,<9.1.0",
     "pytest-asyncio>=1.3.0,<1.4.0",
     "types-protobuf>=5.29.1.20250208",
     "pandas-stubs>=2.2.3.250308",
diff --git a/uv.lock b/uv.lock
index 905a73fd..bb008fc1 100644
--- a/uv.lock
+++ b/uv.lock
@@ -882,7 +882,7 @@ dev = [
     { name = "mypy", specifier = ">=1.8.0,<2.0.0" },
     { name = "pandas-stubs", specifier = ">=2.2.3.250308" },
     { name = "pre-commit", specifier = ">=4.0.0,<5.0.0" },
-    { name = "pytest", specifier = ">=8.3.3,<9.0.0" },
+    { name = "pytest", specifier = ">=9.0.3,<9.1.0" },
     { name = "pytest-asyncio", specifier = ">=1.3.0,<1.4.0" },
     { name = "ruff", specifier = ">=0.11.6,<1.0.0" },
     { name = "types-protobuf", specifier = ">=5.29.1.20250208" },
@@ -3160,7 +3160,7 @@ wheels = [
 
 [[package]]
 name = "pytest"
-version = "8.4.2"
+version = "9.0.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
@@ -3171,9 +3171,9 @@ dependencies = [
     { name = "pygments" },
     { name = "tomli", marker = "python_full_version < '3.11'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/a3/5c/00a0e072241553e1a7496d638deababa67c5058571567b92a7eaa258397c/pytest-8.4.2.tar.gz", hash = "sha256:86c0d0b93306b961d58d62a4db4879f27fe25513d4b969df351abdddb3c30e01", size = 1519618, upload-time = "2025-09-04T14:34:22.711Z" }
+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/a8/a4/20da314d277121d6534b3a980b29035dcd51e6744bd79075a6ce8fa4eb8d/pytest-8.4.2-py3-none-any.whl", hash = "sha256:872f880de3fc3a5bdc88a11b39c9710c3497a547cfa9320bc3c5e62fbf272e79", size = 365750, upload-time = "2025-09-04T14:34:20.226Z" },
+    { 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]]