diff --git a/pyproject.toml b/pyproject.toml
index 7edcf8ea7..4d18dd174 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -76,7 +76,7 @@ development = [
     'pydocstyle==6.3.0',
     'radon==6.0.1',
     'xenon==0.9.3',
-    'types-PyYAML==6.0.12.20250809',
+    'types-PyYAML==6.0.12.20250822',
     'codespell==2.4.1',
     'mypy==1.17.1',
     #'flake8==5.0.4', # version 6.x.x requires python >= 3.8.1 (but 3.7 support window is until 2023-06-27)