diff --git a/tools/ci/testrun/script/__init__.py b/tools/ci/testrun/script/__init__.py
index f18cc000eb2..30983c7bef1 100644
--- a/tools/ci/testrun/script/__init__.py
+++ b/tools/ci/testrun/script/__init__.py
@@ -1,2 +1,2 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # encoding: utf-8
diff --git a/tools/ci/testrun/script/conftest.py b/tools/ci/testrun/script/conftest.py
index 6f12f284ea1..d578c8d5922 100644
--- a/tools/ci/testrun/script/conftest.py
+++ b/tools/ci/testrun/script/conftest.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # encoding: utf-8
 
 import pytest
diff --git a/tools/ci/testrun/script/test_example/__init__.py b/tools/ci/testrun/script/test_example/__init__.py
index f18cc000eb2..30983c7bef1 100644
--- a/tools/ci/testrun/script/test_example/__init__.py
+++ b/tools/ci/testrun/script/test_example/__init__.py
@@ -1,2 +1,2 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # encoding: utf-8
diff --git a/tools/ci/testrun/script/test_example/test_example.py b/tools/ci/testrun/script/test_example/test_example.py
index 596626ec4e7..629c1db1723 100644
--- a/tools/ci/testrun/script/test_example/test_example.py
+++ b/tools/ci/testrun/script/test_example/test_example.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # encoding: utf-8
 import pytest
 
diff --git a/tools/ci/testrun/script/test_os/__init__.py b/tools/ci/testrun/script/test_os/__init__.py
index f18cc000eb2..30983c7bef1 100644
--- a/tools/ci/testrun/script/test_os/__init__.py
+++ b/tools/ci/testrun/script/test_os/__init__.py
@@ -1,2 +1,2 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # encoding: utf-8
diff --git a/tools/ci/testrun/script/test_os/test_os.py b/tools/ci/testrun/script/test_os/test_os.py
index 4495649d54a..1d34fde79f2 100644
--- a/tools/ci/testrun/script/test_os/test_os.py
+++ b/tools/ci/testrun/script/test_os/test_os.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # encoding: utf-8
 import pytest
 
diff --git a/tools/ci/testrun/utils/__init__.py b/tools/ci/testrun/utils/__init__.py
index f18cc000eb2..30983c7bef1 100644
--- a/tools/ci/testrun/utils/__init__.py
+++ b/tools/ci/testrun/utils/__init__.py
@@ -1,2 +1,2 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # encoding: utf-8
diff --git a/tools/ci/testrun/utils/common.py b/tools/ci/testrun/utils/common.py
index c1f5db7a0f5..63ff550e7de 100644
--- a/tools/ci/testrun/utils/common.py
+++ b/tools/ci/testrun/utils/common.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 import os
 import re
diff --git a/tools/discover.py b/tools/discover.py
index 140ca01cefe..dc41e8e39ec 100755
--- a/tools/discover.py
+++ b/tools/discover.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 ############################################################################
 # tools/discover.py
 #
diff --git a/tools/ide_exporter.py b/tools/ide_exporter.py
index 4864bf9dbfd..602896b3d0c 100755
--- a/tools/ide_exporter.py
+++ b/tools/ide_exporter.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 ############################################################################
 # tools/ide_exporter.py
 #
diff --git a/tools/mkallsyms.py b/tools/mkallsyms.py
index f67e7445f48..c7051de9ee4 100755
--- a/tools/mkallsyms.py
+++ b/tools/mkallsyms.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 ############################################################################
 # tools/mkallsyms.py
 #
diff --git a/tools/parsecallstack.py b/tools/parsecallstack.py
index a88f744d85a..4975a34abc2 100755
--- a/tools/parsecallstack.py
+++ b/tools/parsecallstack.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # tools/parsecallstack.py
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more
diff --git a/tools/parsememdump.py b/tools/parsememdump.py
index ecb3b99d35c..5b8e9540a1f 100644
--- a/tools/parsememdump.py
+++ b/tools/parsememdump.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # tools/parsememdump.py
 #
 # Licensed to the Apache Software Foundation (ASF) under one or more
diff --git a/tools/xmlrpc_test.py b/tools/xmlrpc_test.py
index ab3e2181c79..3bd7e1667a3 100755
--- a/tools/xmlrpc_test.py
+++ b/tools/xmlrpc_test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 ############################################################################
 # tools/xmlrpc_test.py
 #