diff --git a/requirements_dev.txt b/requirements_dev.txt
index 6a6a6ee..ce1f7bf 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -221,7 +221,7 @@ pygments==2.19.2
     #   jupyter-console
     #   pytest
     #   sphinx
-pymdown-extensions==10.21
+pymdown-extensions==10.21.3
     # via mkdocstrings
 pyproject-api==1.10.0
     # via tox