diff --git a/nova b/nova
index 110a683486..28639ffa22 160000
--- a/nova
+++ b/nova
@@ -1 +1 @@
-Subproject commit 110a683486b750488ee147b16a17451750af4c5e
+Subproject commit 28639ffa22e00d8d9f423609820c867bc8d24c52