diff --git a/pkgs/development/python-modules/flask-testing/default.nix b/pkgs/development/python-modules/flask-testing/default.nix
index e17662e7ca64..c66fe9bbfd1e 100644
--- a/pkgs/development/python-modules/flask-testing/default.nix
+++ b/pkgs/development/python-modules/flask-testing/default.nix
@@ -38,6 +38,8 @@ buildPythonPackage rec {
     "test_assert_redirects"
     "test_server_listening"
     "test_server_process_is_spawned"
+    # change in repr(template) in recent flask
+    "test_assert_template_rendered_signal_sent"
   ];
 
   disabledTestPaths = [