diff --git a/requirements.txt b/requirements.txt
index a87f1ad6f6..a793b134eb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ Deprecated==1.2.7
 Django==2.2.18
 django-auth-ldap==2.2.0
 djangorestframework==3.12.1
-dnspython==1.16.0
+dnspython==2.1.0
 docutils==0.15.2
 easygui==0.98.1
 flower==0.9.3