diff --git a/pyproject.toml b/pyproject.toml
index f3f56fdf..de1537ae 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -83,7 +83,7 @@ common = [
     "types-maxminddb==1.5.0",
     "types-protobuf==4.24.0.1",
     "types-psycopg2>=2.9.21.20250809",
-    "types-python-dateutil==2.9.0.20260518",
+    "types-python-dateutil==2.9.0.20260807",
     "types-pytz==2025.2.0.20250516",
     "types-pyyaml==6.0.12.20250516",
     "types-requests==2.27.7",
diff --git a/uv.lock b/uv.lock
index 93bdbce9..5abe0912 100644
--- a/uv.lock
+++ b/uv.lock
@@ -99,7 +99,7 @@ common = [
     { name = "types-maxminddb", specifier = "==1.5.0" },
     { name = "types-protobuf", specifier = "==4.24.0.1" },
     { name = "types-psycopg2", specifier = ">=2.9.21.20250809" },
-    { name = "types-python-dateutil", specifier = "==2.9.0.20260518" },
+    { name = "types-python-dateutil", specifier = "==2.9.0.20260807" },
     { name = "types-pytz", specifier = "==2025.2.0.20250516" },
     { name = "types-pyyaml", specifier = "==6.0.12.20250516" },
     { name = "types-requests", specifier = "==2.27.7" },
@@ -2597,11 +2597,11 @@ wheels = [
 
 [[package]]
 name = "types-python-dateutil"
-version = "2.9.0.20260518"
+version = "2.9.0.20260807"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/8d/e8/c01bdf0d7c3659428c091fbd693177093639565bcbc86bc20098e6d37cc6/types_python_dateutil-2.9.0.20260518.tar.gz", hash = "sha256:51f02dc03b61c7f6a07df45797d4dfe8a1aa47f0b7db9ad89f6fd3a1a70e1b51", size = 17082, upload-time = "2026-05-18T06:05:24.508Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/c8/4e/b3fa538f9cb38dfece0d6ccf6d3d0d925bdedb144fb9c8129dfc007cd003/types_python_dateutil-2.9.0.20260807.tar.gz", hash = "sha256:e0b8a90d464c8684c66b7b8e4556d9074afdddcc56ca45323f0987134f9e7034", size = 17618, upload-time = "2026-08-07T04:17:13.491Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/36/22/169273273ca34e9ab0ae2f387ba72ed7e09faaaf834da01d6b89c2bea71a/types_python_dateutil-2.9.0.20260518-py3-none-any.whl", hash = "sha256:d6a9c5bd0de61460c8fdef8ab2b400f956a1a1075cce08d4e2b4434e478c50b8", size = 18431, upload-time = "2026-05-18T06:05:23.641Z" },
+    { url = "https://files.pythonhosted.org/packages/e4/5e/3715867caea2f4cea56ccb04c851cde23ed063449c3b004c7a047f20dd48/types_python_dateutil-2.9.0.20260807-py3-none-any.whl", hash = "sha256:54aa3707350ed7a9cc0776fd2f6739679d6967d11b40150985e81edcb86df4db", size = 18486, upload-time = "2026-08-07T04:17:12.504Z" },
 ]
 
 [[package]]