diff --git a/dockers/docker-database/flush_unused_database b/dockers/docker-database/flush_unused_database
index 10cacb5e0b..e253bc2a4c 100755
--- a/dockers/docker-database/flush_unused_database
+++ b/dockers/docker-database/flush_unused_database
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 import swsssdk
 import redis
 import subprocess