diff --git a/perl-bootstrap.yaml b/perl-bootstrap.yaml
index c203f1a..5af5e89 100644
--- a/perl-bootstrap.yaml
+++ b/perl-bootstrap.yaml
@@ -12,12 +12,12 @@ data:
         module: [ MIT ]
     dependencies:
         buildrequires:
-            platform: master
+            platform: f27
             # Explicitly require transitive dependencies to work around
             # <https://pagure.io/fm-orchestrator/issue/530>.
-            host: master
+            host: f27
         requires:
-            platform: master
+            platform: f27
     references:
         community: https://fedoraproject.org/wiki/Modularity
         documentation: https://fedoraproject.org/wiki/Fedora_Packaging_Guidelines_for_Modules