diff --git a/packages/hsr_head_positioner/src/hsr_head_positioner.py b/packages/hsr_head_positioner/src/hsr_head_positioner.py
index d03c366..fc6706f 100755
--- a/packages/hsr_head_positioner/src/hsr_head_positioner.py
+++ b/packages/hsr_head_positioner/src/hsr_head_positioner.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import controller_manager_msgs.srv
 import rospy