diff --git a/scripts/generate_psa_constants.py b/scripts/generate_psa_constants.py
index ab7f1341f..a76bf7e07 100755
--- a/scripts/generate_psa_constants.py
+++ b/scripts/generate_psa_constants.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 import os
 import re
 import sys