diff --git a/requirements.txt b/requirements.txt
index 4ae8c73..d6ffb44 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ celery==4.2.1
 certifi==2018.4.16
 chardet==3.0.4
 hupper==1.3
-idna==2.7
+idna==3.7
 kombu==4.2.1
 legendarium==2.0.2
 lxml==4.2.3