diff --git a/voltha-stack/Chart.yaml b/voltha-stack/Chart.yaml
index 3556a78..5680226 100644
--- a/voltha-stack/Chart.yaml
+++ b/voltha-stack/Chart.yaml
@@ -30,11 +30,11 @@
 
 # app version is NOT used in this chart for application versions or image tags
 # but represents the voltha release version itself
-appVersion : "2.17"
+appVersion : "2.15"
 
 ## Chart version for package voltha-stack
 ##   Increment when Chart.yaml changes
-version    : "2.15.4"
+version    : "2.15.6"
 
 # -----------------------------------------------------------------------
 # NOTE: Dependencies are chart versions not component/repository version
@@ -43,19 +43,19 @@
 dependencies:
   - name       : voltha
     repository : file://../voltha
-    version    : "2.15.4"
+    version    : "2.15.5"
     condition  : voltha.enabled
   - name       : "voltha-adapter-openonu"
     repository : "file://../voltha-adapter-openonu"
-    version    : "2.15.3"
+    version    : "2.15.4"
     condition  : "voltha-adapter-openonu.enabled"
   - name       : voltha-adapter-openolt
     repository : file://../voltha-adapter-openolt
-    version    : "2.15.3"
+    version    : "2.15.4"
     condition  : voltha-adapter-openolt.enabled
   - name       : voltha-go-controller
     repository : file://../voltha-go-controller
-    version    : "2.15.2"
+    version    : "2.15.3"
     condition  : voltha-go-controller.enabled
 
 # [EOF]