diff --git a/389-ds.yaml b/389-ds.yaml
index 4d6198a..2f2d9ca 100644
--- a/389-ds.yaml
+++ b/389-ds.yaml
@@ -8,14 +8,14 @@ data:
             - MIT
     dependencies:
         buildrequires:
-            bootstrap: master
+            bootstrap: f27
         requires:
             bind: 9
-            platform: master
+            platform: f27
             networking-base: f27
-            perl: master
-            python3: master
-            python3-ecosystem: master
+            perl: 5.26
+            python3: 3.6
+            python3-ecosystem: f27
     references:
         community: https://docs.pagure.org/modularity/
         documentation: https://github.com/modularity-modules/389-ds
@@ -41,7 +41,7 @@ data:
         rpms:
             389-ds-base:
                 rationale: Generated.
-                ref: 17bfc6a06ff1247dad3aee4b290d3162b02b6e70
+                ref: 81279ee535a289c9d85338441599227c9893916e
             gperftools:
                 rationale: Generated.
                 ref: 137b2efb2616f63c1d57a8b720926a42ac9b453b