diff --git a/pkgs/development/python-modules/django-mailman3/default.nix b/pkgs/development/python-modules/django-mailman3/default.nix
index 11939b9b773..fbac0a82a17 100644
--- a/pkgs/development/python-modules/django-mailman3/default.nix
+++ b/pkgs/development/python-modules/django-mailman3/default.nix
@@ -4,11 +4,11 @@
 
 buildPythonPackage rec {
   pname = "django-mailman3";
-  version = "1.3.4";
+  version = "1.3.5";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "7e37b68bb47e9ae196ca19018f576e2c8c90189c5bd82d4e549d0c2f2f3f35fb";
+    sha256 = "sha256-NoWVs8JiPt6spb7qXxKIdCTDhO3W9wUs9EJEMHUIQxM=";
   };
 
   propagatedBuildInputs = [
@@ -21,10 +21,12 @@ buildPythonPackage rec {
     PYTHONPATH=.:$PYTHONPATH django-admin.py test --settings=django_mailman3.tests.settings_test
   '';
 
+  pythonImportsCheck = [ "django_mailman3" ];
+
   meta = with lib; {
     description = "Django library for Mailman UIs";
     homepage = "https://gitlab.com/mailman/django-mailman3";
-    license = licenses.gpl3;
+    license = licenses.gpl3Plus;
     maintainers = with maintainers; [ globin peti ];
   };
 }