diff --git a/requirements.txt b/requirements.txt
index 6f7abdbb..97c7e54b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ gitdb==4.0.5
 gitdb2==4.0.2
 GitPython==3.1.7
 glyphsLib==5.1.11
-idna==2.10
+idna==3.7
 itsdangerous==1.1.0
 Jinja2==2.11.2
 lxml==4.5.2