diff --git a/ninja.yaml b/ninja.yaml
index fdd424b..c8bba0b 100644
--- a/ninja.yaml
+++ b/ninja.yaml
@@ -12,9 +12,9 @@ data:
     module: [ MIT ]
   dependencies:
     buildrequires:
-      bootstrap: master
+      bootstrap: f27
     requires:
-      platform: master
+      platform: f27
   references:
     community: https://ninja-build.org/
     documentation: https://ninja-build.org/manual.html