diff --git a/requirements.txt b/requirements.txt
index 7964b28e3c..a6e5248bbd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ chardet==3.0.4
 configparser==5.0.0
 contextlib2==0.6.0.post1
 identify==1.4.17
-idna==2.9
+idna==3.7
 importlib-metadata==1.6.0
 importlib-resources==1.5.0
 Jinja2==2.11.2