VOL-4446: Fix etcd stale data issue post device delete

Change-Id: I138c09479281a4ebca28aecfb21352a298639bd0
diff --git a/voltha-stack/Chart.yaml b/voltha-stack/Chart.yaml
index 9b1a428..5982ef2 100644
--- a/voltha-stack/Chart.yaml
+++ b/voltha-stack/Chart.yaml
@@ -28,7 +28,7 @@
 name: voltha-stack
 
 appVersion: "2.8"
-version: 2.8.10
+version: 2.8.11
 
 dependencies:
   - name: voltha
@@ -41,5 +41,5 @@
     condition: voltha-adapter-openonu.enabled
   - name: voltha-adapter-openolt
     repository: file://../voltha-adapter-openolt
-    version: 2.9.8
+    version: 2.9.9
     condition: voltha-adapter-openolt.enabled