diff --git a/docs/requirements.txt b/docs/requirements.txt
index c2e222a3..519e4bcf 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -4,7 +4,7 @@ Babel==2.12.1
 cffi==1.15.1
 charset-normalizer==2.0.12
 docutils==0.16
-idna==3.7
+idna==3.15
 imagesize==1.4.1
 importlib-metadata==6.8.0
 Jinja2==3.1.6