diff --git a/docs/mkdocs/requirements.txt b/docs/mkdocs/requirements.txt
index b397d545d0..ccab6333a5 100644
--- a/docs/mkdocs/requirements.txt
+++ b/docs/mkdocs/requirements.txt
@@ -9,7 +9,7 @@ gitdb==4.0.11
 GitPython==3.1.40
 htmlmin==0.1.12
 httplib2==0.22.0
-idna==3.4
+idna==3.15
 importlib-metadata==6.8.0
 Jinja2==3.1.2
 joblib==1.3.2