diff --git a/requirements.txt b/requirements.txt
index e44df92..845a495 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,6 +5,7 @@ bioservices >= 1.5.0
 cement >= 3.0.0
 configobj
 ete3
+flask_migrate
 jxmlease
 marshmallow_sqlalchemy
 numpy