diff --git a/os-api-ref b/os-api-ref
index 1813e1996a..4c78681bea 160000
--- a/os-api-ref
+++ b/os-api-ref
@@ -1 +1 @@
-Subproject commit 1813e1996af4c8d66a32f9f0c32173e643044c43
+Subproject commit 4c78681bea49680fe38282fcc1a697a2f6885958