diff --git a/requirements.txt b/requirements.txt
index a1ec17f8..feac1a8e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ sqlalchemy
 six
 fedmsg
 pdc-client
-modulemd
+modulemd==0.1
 pyOpenSSL
 kobo
 munch