diff --git a/buildout/developx3/project.cfg b/buildout/developx3/project.cfg
index 6e88b48..98e765e 100644
--- a/buildout/developx3/project.cfg
+++ b/buildout/developx3/project.cfg
@@ -2,8 +2,8 @@
 extends = 
     local.cfg
     secret.cfg
-    floating_versions_custom.cfg
-    pinned_versions_custom.cfg
+    floating_versions_project.cfg
+    pinned_versions_project.cfg
 
 parts +=