diff --git a/project.yml b/project.yml
index 357b5ea..0bcd1a3 100644
--- a/project.yml
+++ b/project.yml
@@ -27,6 +27,6 @@
 #
 repository.apache-mynewt-core:
     type: github
-    vers: 1-latest
+    vers: 0.9.999
     user: apache
     repo: incubator-mynewt-core