diff --git a/uncloud/requirements.txt b/uncloud/requirements.txt
index c8a15d3..c7ebc65 100644
--- a/uncloud/requirements.txt
+++ b/uncloud/requirements.txt
@@ -6,3 +6,8 @@ xmltodict
 psycopg2
 
 parsedatetime
+
+# Follow are for creating graph models
+pyparsing
+pydot
+django-extensions