diff --git a/github_modified_files.py b/github_modified_files.py
index 3cdb25f6283f..9b40aca37209 100755
--- a/github_modified_files.py
+++ b/github_modified_files.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
 Gets list of files that will be modified by all PRs for the branch.
 Dumps to file to be loaded by other script.