diff --git a/pkgs/applications/networking/powerdns-admin/default.nix b/pkgs/applications/networking/powerdns-admin/default.nix
index 1fc698fe1900..fe0112a4aaef 100644
--- a/pkgs/applications/networking/powerdns-admin/default.nix
+++ b/pkgs/applications/networking/powerdns-admin/default.nix
@@ -9,13 +9,7 @@ let
     hash = "sha256-e11u0jdJr+2TDXvBAPlDfnuuDwSfBq+JtvnDUTNKp/c=";
   };
 
-  python = python3.override {
-    packageOverrides = self: super: {
-      # The bravado-core dependency is incompatible with jschonschema 4.0:
-      # https://github.com/Yelp/bravado-core/pull/385
-      jsonschema = super.jsonschema_3;
-    };
-  };
+  python = python3;
 
   pythonDeps = with python.pkgs; [
     flask flask_assets flask-login flask-sqlalchemy flask_migrate flask-seasurf flask_mail flask-session flask-sslify