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.
 #