diff --git a/pyproject.toml b/pyproject.toml
index cd03a938..a539fe15 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -89,7 +89,7 @@ dev-mypy = [
   "mypy == 1.11.2",
   "types-setuptools >= 67.6.0, < 72",  # Should match the build dependency
   "types-Markdown == 3.7.0.20240822",
-  "types-PyYAML == 6.0.12.20240724",
+  "types-PyYAML == 6.0.12.20240808",
   "types-babel == 2.11.0.15",
   "types-colorama == 0.4.15.20240311",
   # For checking the noxfile, docs/ script, and tests