diff --git a/requirements.txt b/requirements.txt
index 24b5556..a939cfe 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ dj-static==0.0.6
 Django==1.11.19
 django-toolbelt==0.0.1
 gunicorn==19.10.0
-idna==2.6
+idna==3.7
 psycopg2==2.7.3
 pycparser==2.18
 pyOpenSSL==17.5.0