diff --git a/krb5.yaml b/krb5.yaml
index afaccfa..fe64818 100644
--- a/krb5.yaml
+++ b/krb5.yaml
@@ -8,9 +8,9 @@ data:
             - MIT
     dependencies:
         buildrequires:
-            bootstrap: master
+            bootstrap: f27
         requires:
-            platform: master
+            platform: f27
     references:
         community: https://docs.pagure.org/modularity/
         documentation: https://github.com/modularity-modules/krb5