diff --git a/src/test/regress/upgrade/upgrade_common.py b/src/test/regress/upgrade/upgrade_common.py
index e04a79649..cd013559c 100644
--- a/src/test/regress/upgrade/upgrade_common.py
+++ b/src/test/regress/upgrade/upgrade_common.py
@@ -73,6 +73,7 @@ def run_pg_regress(pg_path, pg_srcdir, port, schedule):
         '--use-existing'
     ]
     exit_code = subprocess.call(command)
+    subprocess.run('bin/copy_modified', check=True)
     if exit_code != 0:
         sys.exit(exit_code)