diff --git a/python/podio_schema_evolution.py b/python/podio_schema_evolution.py
index 07b447736..640f46ba6 100755
--- a/python/podio_schema_evolution.py
+++ b/python/podio_schema_evolution.py
@@ -3,8 +3,8 @@
 Provides infrastructure for analyzing schema definitions for schema evolution
 """
 
-import yaml
 import sys
+import yaml
 
 from podio_gen.podio_config_reader import PodioConfigReader