diff --git a/infer/bin/BuckAnalyze b/infer/bin/BuckAnalyze
index 108b31650..cc8e0783f 100755
--- a/infer/bin/BuckAnalyze
+++ b/infer/bin/BuckAnalyze
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2.7
 #
 # Copyright (c) 2013-present Facebook. All rights reserved.
 #
diff --git a/infer/bin/infer b/infer/bin/infer
index cb992f069..1265c8e07 100755
--- a/infer/bin/infer
+++ b/infer/bin/infer
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2.7
 
 import argparse
 import imp
diff --git a/infer/bin/inferJ b/infer/bin/inferJ
index 44bb2e434..56597dbd7 100755
--- a/infer/bin/inferJ
+++ b/infer/bin/inferJ
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2.7
 #
 # Copyright (c) 2013- Facebook.  All rights reserved.
 #
diff --git a/infer/bin/inferTraceBugs b/infer/bin/inferTraceBugs
index dcbc6bfc9..4c9a9c832 100755
--- a/infer/bin/inferTraceBugs
+++ b/infer/bin/inferTraceBugs
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2.7
 #
 # Copyright (c) 2013-present Facebook. All rights reserved.
 #