Fix nimble repo dependency
diff --git a/repository.yml b/repository.yml
index 76500a2..299589d 100644
--- a/repository.yml
+++ b/repository.yml
@@ -70,4 +70,4 @@
         repo: mynewt-nimble
         vers:
             master: 0-dev
-            1.4.0: 1.0.0
+            mynewt_1_4_0_tag: 1.0.0