diff --git a/platform.yaml b/platform.yaml
index 72cb7da..a892102 100644
--- a/platform.yaml
+++ b/platform.yaml
@@ -14,7 +14,7 @@ data:
         buildrequires:
             bootstrap: master
         requires:
-            host: master
+            host: f27
     references:
         community: https://fedoraproject.org/wiki/Host_and_Platform
         documentation: https://github.com/fedora-modularity/hp