diff --git a/requirements.txt b/requirements.txt
index 5ed1d8e5..b61a38ec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ furl==2.1.0
 google-auth==1.6.3
 google-auth-oauthlib==0.4.1
 hca==6.4.0
-idna==2.8
+idna==3.7
 inflection==0.3.1
 itsdangerous==1.1.0
 Jinja2==2.10.3