diff --git a/requirements.txt b/requirements.txt
index 34724aa..23963b9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -22,7 +22,7 @@ fasteners==0.15
 flake8==3.7.8
 future==0.17.1
 git-url-parse==1.2.2
-idna==2.7
+idna==3.7
 importlib-metadata==0.19
 Jinja2==2.10.1
 jinja2-time==0.2.0