diff --git a/pyproject.toml b/pyproject.toml
index 2b6a4adbd3..2f79cf3820 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -78,7 +78,7 @@ dev = [
     "pytest-cov==7.1.0",
     "mypy==2.3.1",
     "types-pywin32==312.0.0.20260827",
-    "types-PyYAML==6.0.12.20260815",
+    "types-PyYAML==6.0.12.20260906",
     "types-chevron==0.14.2.20260408",
     "types-psutil==7.2.2.20260827",
     "types-setuptools==84.0.0.20260812",