diff --git a/requirements_dev.txt b/requirements_dev.txt
index c03295f..b1c857c 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -85,7 +85,7 @@ pydantic-core==2.46.4
 pygments==2.18.0
     # via sphinx
 pyright==1.1.410
-pytest==8.3.3
+pytest==9.0.3
     # via
     #   pytest-cov
     #   pytest-mock
diff --git a/uv.lock b/uv.lock
index 4ee1548..8417398 100644
--- a/uv.lock
+++ b/uv.lock
@@ -2,10 +2,6 @@ version = 1
 revision = 3
 requires-python = ">=3.12"
 
-[options]
-exclude-newer = "0001-01-01T00:00:00Z" # This has no effect and is included for backwards compatibility when using relative exclude-newer values.
-exclude-newer-span = "P7D"
-
 [[package]]
 name = "alabaster"
 version = "0.7.16"
@@ -521,17 +517,18 @@ wheels = [
 
 [[package]]
 name = "pytest"
-version = "8.3.3"
+version = "9.1.1"
 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/8b/6c/62bbd536103af674e227c41a8f3dcd022d591f6eed5facb5a0f31ee33bbc/pytest-8.3.3.tar.gz", hash = "sha256:70b98107bd648308a7952b06e6ca9a50bc660be218d53c257cc1fc94fda10181", size = 1442487, upload-time = "2024-09-10T10:52:15.003Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/e4/47/b9efed96c114afcfa3c9d3fe98a76a1d14c74a9e266d397cf6eb64be5e01/pytest-9.1.1.tar.gz", hash = "sha256:1088fbde8f2b49d95a549a195707afa7a76a3ce9bcadc26b6d71f0ffda5fe313", size = 1636369, upload-time = "2026-06-19T10:58:32.857Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/6b/77/7440a06a8ead44c7757a64362dd22df5760f9b12dc5f11b6188cd2fc27a0/pytest-8.3.3-py3-none-any.whl", hash = "sha256:a6853c7375b2663155079443d2e45de913a911a11d669df02a50814944db57b2", size = 342341, upload-time = "2024-09-10T10:52:12.54Z" },
+    { url = "https://files.pythonhosted.org/packages/24/25/1de2678b631f5a49215c6c96fff41ba892b0a34df68d6d80292b1b48aa7f/pytest-9.1.1-py3-none-any.whl", hash = "sha256:37a86b45efb9a47a61a36449063e8e18d0cab3161329fc099eb21783169c4f0c", size = 386536, upload-time = "2026-06-19T10:58:31.347Z" },
 ]
 
 [[package]]