diff --git a/docs/requirements.txt b/docs/requirements.txt
index 6343798..1117e8d 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -17,7 +17,7 @@ docutils==0.21.2
     #   myst-parser
     #   sphinx
     #   sphinx-rtd-theme
-idna==3.10
+idna==3.15
     # via requests
 imagesize==1.4.1
     # via sphinx