diff --git a/requirements.txt b/requirements.txt
index 55da6a6..526eb34 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ docutils==0.15.2
 flake8==3.9.2
 gunicorn==19.7.1
 html5lib==1.0.1
-idna==2.8
+idna==3.7
 ipaddr==2.2.0
 ipdb==0.13.4
 ipython==8.10.0