diff --git a/python_terraform/__init__.py b/python_terraform/__init__.py
index f7a7634..9c7dfb1 100644
--- a/python_terraform/__init__.py
+++ b/python_terraform/__init__.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# above is for compatibility of python2
+# above is for compatibility of python2.7.11
 
 import subprocess
 import os
diff --git a/python_terraform/tfstate.py b/python_terraform/tfstate.py
index b0e1408..22e5c05 100644
--- a/python_terraform/tfstate.py
+++ b/python_terraform/tfstate.py
@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-# above is for compatibility of python2
+# above is for compatibility of python2.7.11
 
 import json
 import os