diff --git a/requirements.txt b/requirements.txt
index 5ee67c2..3a81752 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Flask==0.12
+Flask==0.12.3
 Flask_SQLAlchemy==2.1
 mailchimp3==2.0.7
 pubnub==4.0.6