Use the correct version string

jingming · jingming · commit a9b51448d9a9 · 2017-05-15T12:55:54.000-07:00
diff --git a/CHANGES.md b/CHANGES.md
@@ -3,7 +3,7 @@ twilio-python Changelog
 
 Here you can see the full list of changes between each twilio-python release.
 
-[2017-05-12] Version 6.1.2
+[2017-05-12] Version 6.1.2-alpha-1
 ----------------------------------
 
 - Support *kwargs in Gather TwiML
