diff --git a/doc-requirements.txt b/doc-requirements.txt
index 856d384..2717c1e 100644
--- a/doc-requirements.txt
+++ b/doc-requirements.txt
@@ -2,4 +2,4 @@ mkdocs==1.5.3
 mkdocs-material==9.4.8
 mkdocs-material-extensions~=1.3
 pygments==2.16.1
-pymdown-extensions==10.3.1
+pymdown-extensions==10.4