diff --git a/bind.yaml b/bind.yaml
index 39c22a8..e0902e5 100644
--- a/bind.yaml
+++ b/bind.yaml
@@ -23,8 +23,8 @@ data:
             bootstrap: f27
         requires:
             platform: f27
-            python3: master
-            python3-ecosystem: master
+            python3: 3.6
+            python3-ecosystem: f27
             postgresql: 9.6
 
     references: