diff --git a/docs/requirements.txt b/docs/requirements.txt
index 05df979..01dc45f 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -13,7 +13,7 @@ decorator==4.4.2
 defusedxml==0.6.0
 docutils==0.16
 entrypoints==0.3
-idna==2.10
+idna==3.7
 imagesize==1.2.0
 importlib-metadata==2.0.0
 ipython-genutils==0.2.0