diff --git a/tests/test_resolvers/test_stack_output.py b/tests/test_resolvers/test_stack_output.py
index f19215e57..0d671ac61 100644
--- a/tests/test_resolvers/test_stack_output.py
+++ b/tests/test_resolvers/test_stack_output.py
@@ -63,7 +63,6 @@ def test_resolver__badly_formatted(self, mock_get_output_value):
             SceptreException,
             match="!stack_output arg should match STACK_NAME::OUTPUT_KEY",
         ):
-
             stack_output_resolver.setup()
 
     @patch("sceptre.resolvers.stack_output.StackOutput._get_output_value")