diff --git a/libtom.yaml b/libtom.yaml
index e075ae1..9487e17 100644
--- a/libtom.yaml
+++ b/libtom.yaml
@@ -21,13 +21,13 @@ data:
     module: [ MIT ]
   dependencies:
     buildrequires:
-      bootstrap: master
+      bootstrap: f27
       # We don't have texlive and ghostscript stuff so far
-      #platform: master
-      #autotools: master
-      #texlive: master
+      #platform: f27
+      #autotools: f27
+      #texlive: f27
     requires:
-      platform: master
+      platform: f27
   references:
     community: http://www.libtom.net/
     documentation: http://www.libtom.net/
@@ -44,7 +44,9 @@ data:
     rpms:
       libtomcrypt:
         rationale: Main component.
+        ref: f27
       libtommath:
         rationale: Main component.
+        ref: f27
         # libtomcrypt BuildRequires libtommath
         buildorder: -1