diff --git a/contribs/cray/csm/slurmconfgen_smw.py b/contribs/cray/csm/slurmconfgen_smw.py

index cf2bf56f82..013181447f 100644

--- a/contribs/cray/csm/slurmconfgen_smw.py

+++ b/contribs/cray/csm/slurmconfgen_smw.py

@@ -1,4 +1,4 @@

-#!/usr/bin/env python

+#!/usr/bin/env python3

 #

 # Copyright 2015-2016 Cray Inc. All Rights Reserved.

 """ A script to generate slurm.conf and gres.conf for a

diff --git a/contribs/cray/slurmconfgen.py.in b/contribs/cray/slurmconfgen.py.in

index b92aabc731..970c5b4802 100644

--- a/contribs/cray/slurmconfgen.py.in

+++ b/contribs/cray/slurmconfgen.py.in

@@ -1,4 +1,4 @@

-#!/usr/bin/python

+#!/usr/bin/python3

 #

 # (c) Copyright 2013 Cray Inc.  All Rights Reserved.

 #

diff --git a/doc/html/shtml2html.py b/doc/html/shtml2html.py

index 0b03182b80..43954a37a9 100755

--- a/doc/html/shtml2html.py

+++ b/doc/html/shtml2html.py

@@ -1,4 +1,4 @@

-#!/usr/bin/env python

+#!/usr/bin/env python3

 import re

 import sys

diff --git a/doc/man/man2html.py b/doc/man/man2html.py

index 54909096b9..93433d6fa3 100755

--- a/doc/man/man2html.py

+++ b/doc/man/man2html.py

@@ -1,4 +1,4 @@

-#!/usr/bin/env python

+#!/usr/bin/env python3

 import re

 import sys

diff --git a/testsuite/expect/regression.py b/testsuite/expect/regression.py

index 938aecc154..ea64c7cce0 100755

--- a/testsuite/expect/regression.py

+++ b/testsuite/expect/regression.py

@@ -1,4 +1,4 @@

-#!/usr/bin/env python

+#!/usr/bin/env python3

 ############################################################################

 # Copyright (C) 2006 The Regents of the University of California.

 # Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).