diff --git a/tools/versioner/run_tests.py b/tools/versioner/run_tests.py
index f3bb6db..396f895 100755
--- a/tools/versioner/run_tests.py
+++ b/tools/versioner/run_tests.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
 
 import os
 import subprocess