diff --git a/drl_vo_barn_nav/src/barn_data_pub.py b/drl_vo_barn_nav/src/barn_data_pub.py
index d1fae35..6a2f49a 100755
--- a/drl_vo_barn_nav/src/barn_data_pub.py
+++ b/drl_vo_barn_nav/src/barn_data_pub.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 import numpy as np
 from random import choice
 import rospy
diff --git a/drl_vo_barn_nav/src/drl_vo_inference.py b/drl_vo_barn_nav/src/drl_vo_inference.py
index 882c446..da500af 100755
--- a/drl_vo_barn_nav/src/drl_vo_inference.py
+++ b/drl_vo_barn_nav/src/drl_vo_inference.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # file: $ISIP_EXP/tuh_dpath/exp_0074/scripts/decode.py
 #
diff --git a/drl_vo_barn_nav/src/pure_pursuit.py b/drl_vo_barn_nav/src/pure_pursuit.py
index 8d14ebc..af7bf77 100755
--- a/drl_vo_barn_nav/src/pure_pursuit.py
+++ b/drl_vo_barn_nav/src/pure_pursuit.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import rospy
 from nav_msgs.msg import Path