diff --git a/build-support/clang_tidy.py b/build-support/clang_tidy.py
index 4ee303abaf..5919814253 100755
--- a/build-support/clang_tidy.py
+++ b/build-support/clang_tidy.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Licensed to the Apache Software Foundation (ASF) under one
 # or more contributor license agreements.  See the NOTICE file