diff --git a/crawler b/crawler
index eec3f11..8361475 100755
--- a/crawler
+++ b/crawler
@@ -1,4 +1,4 @@
-#!/usr/bin/env python3.6
+#!/usr/bin/env python3.7
 #
 # Copyright (C) 2016-2017 The University of Sheffield, UK
 #