VOL-4233: Update component version in voltha-helm-charts

Change-Id: I9558632f1cbc1fc426adcc4cfea00b3a764e47f7
diff --git a/voltha-stack/Chart.yaml b/voltha-stack/Chart.yaml
index b56c1b2..0593c4b 100644
--- a/voltha-stack/Chart.yaml
+++ b/voltha-stack/Chart.yaml
@@ -27,19 +27,19 @@
     url: "https://www.opennetworking.org"
 name: voltha-stack
 
-appVersion: "2.8-dev"
-version: 0.2.8
+appVersion: "2.8"
+version: 0.2.9
 
 dependencies:
   - name: voltha
     repository: file://../voltha
-    version: 2.9.6
+    version: 2.9.7
     condition: voltha.enabled
   - name: voltha-adapter-openonu
     repository: file://../voltha-adapter-openonu
-    version: 2.8.2
+    version: 2.8.3
     condition: voltha-adapter-openonu.enabled
   - name: voltha-adapter-openolt
     repository: file://../voltha-adapter-openolt
-    version: 2.9.1
+    version: 2.9.2
     condition: voltha-adapter-openolt.enabled