diff --git a/requirements-frozen.txt b/requirements-frozen.txt
index 5b24b252..4c6d252b 100644
--- a/requirements-frozen.txt
+++ b/requirements-frozen.txt
@@ -10,7 +10,7 @@ django-mptt==0.11.0
 django-page-cms==2.0.11
 django-taggit==1.2.0
 djangorestframework==3.15.2
-idna==2.8
+idna==3.7
 isort==4.3.21
 lazy-object-proxy==1.4.3
 Markdown==3.2.1