diff --git a/diagnostic_common_diagnostics/diagnostic_common_diagnostics/ram_monitor.py b/diagnostic_common_diagnostics/diagnostic_common_diagnostics/ram_monitor.py
index 78e59ee3..f3427955 100755
--- a/diagnostic_common_diagnostics/diagnostic_common_diagnostics/ram_monitor.py
+++ b/diagnostic_common_diagnostics/diagnostic_common_diagnostics/ram_monitor.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 #
 # Software License Agreement (BSD License)
 #
diff --git a/diagnostic_common_diagnostics/diagnostic_common_diagnostics/sensors_monitor.py b/diagnostic_common_diagnostics/diagnostic_common_diagnostics/sensors_monitor.py
index 1e4c63fe..f7ecbfff 100755
--- a/diagnostic_common_diagnostics/diagnostic_common_diagnostics/sensors_monitor.py
+++ b/diagnostic_common_diagnostics/diagnostic_common_diagnostics/sensors_monitor.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Software License Agreement (BSD License)
 #