diff --git a/sssd.yaml b/sssd.yaml
index e6992ab..7a7426c 100644
--- a/sssd.yaml
+++ b/sssd.yaml
@@ -8,12 +8,12 @@ data:
             - MIT
     dependencies:
         buildrequires:
-            bootstrap: master
+            bootstrap: f27
         requires:
-            platform: master
-            samba: master
-            python3: master
-            python3-ecosystem: master
+            platform: f27
+            samba: 4.7
+            python3: 3.6
+            python3-ecosystem: f27
     references:
         community: https://docs.pagure.org/modularity/
         documentation: https://github.com/modularity-modules/sssd