diff --git a/postgresql.yaml b/postgresql.yaml
index 6f7e490..df1dc5d 100644
--- a/postgresql.yaml
+++ b/postgresql.yaml
@@ -30,7 +30,7 @@ data:
     rpms:
       postgresql:
         rationale: Generated.
-        ref: master.
+        ref: f27
       uuid:
         rationale: Generated.
-        ref: master.
+        ref: f27