diff --git a/ruby.yaml b/ruby.yaml
index 58445d3..3935c2c 100644
--- a/ruby.yaml
+++ b/ruby.yaml
@@ -19,10 +19,9 @@ data:
     dependencies:
         - buildrequires:
             # platform: [] is recommended.
-            # But set "-f28" to avoid the build failure as a temporary workflow.
-            platform: [-f28]
+            platform: []
           requires:
-            platform: [-f28]
+            platform: []
     components:
         # SRPMs
         rpms: