diff --git a/examples/bin/dsql-main b/examples/bin/dsql-main
index c24602739df3..1508e8444125 100755
--- a/examples/bin/dsql-main
+++ b/examples/bin/dsql-main
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Licensed to the Apache Software Foundation (ASF) under one
 # or more contributor license agreements.  See the NOTICE file
diff --git a/examples/bin/post-index-task-main b/examples/bin/post-index-task-main
index 10b962ae9093..0e1377598bed 100755
--- a/examples/bin/post-index-task-main
+++ b/examples/bin/post-index-task-main
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Licensed to the Apache Software Foundation (ASF) under one
 # or more contributor license agreements.  See the NOTICE file
diff --git a/examples/bin/post-index-task-main3 b/examples/bin/post-index-task-main3
index 6e90861e4392..bc722290fba6 100644
--- a/examples/bin/post-index-task-main3
+++ b/examples/bin/post-index-task-main3
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Licensed to the Apache Software Foundation (ASF) under one
 # or more contributor license agreements.  See the NOTICE file
diff --git a/examples/quickstart/protobuf/pb_publisher.py b/examples/quickstart/protobuf/pb_publisher.py
index d88a5856b946..369f407378e3 100755
--- a/examples/quickstart/protobuf/pb_publisher.py
+++ b/examples/quickstart/protobuf/pb_publisher.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with