diff --git a/requirements.txt b/requirements.txt
index f3d6a4dca..50b8e0629 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ cryptography==2.8
 docutils==0.15.2
 execnet==1.7.1
 identify==1.4.10
-idna==2.8
+idna==3.7
 importlib-metadata==1.3.0
 Jinja2==2.10.3
 jmespath==0.9.4