diff --git a/bin/websocket_monitor.py b/bin/websocket_monitor.py
index f1de2c6..846ccd5 100755
--- a/bin/websocket_monitor.py
+++ b/bin/websocket_monitor.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 r"""
 See help text for details.