diff --git a/voltha-adapter-openolt/Chart.yaml b/voltha-adapter-openolt/Chart.yaml
index 0fd266f..f8cab2d 100644
--- a/voltha-adapter-openolt/Chart.yaml
+++ b/voltha-adapter-openolt/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha-adapter-openolt"
-version: "2.12.1"
+version: "2.12.4"
 description: "A Helm chart for Voltha OpenOLT Adapter"
 keywords:
   - "onf"
diff --git a/voltha-adapter-openolt/values.yaml b/voltha-adapter-openolt/values.yaml
index 28d8bfa..08e6010 100644
--- a/voltha-adapter-openolt/values.yaml
+++ b/voltha-adapter-openolt/values.yaml
@@ -26,14 +26,14 @@
   image_pullPolicy: "Always"
   core_endpoint: "{{ .Values.global.voltha_release_name }}-{{ .Values.global.stack_name }}-core.{{ .Release.Namespace }}.svc:55558"
   # timeout for RPC request
-  rpc_timeout: "10s"
+  rpc_timeout: "20s"
   adapter_open_olt:
     timeout: "5s"
     heartbeat_check_interval: "15s"
     heartbeat_fail_interval: "31s"
     check_onu_exist_on_discovery: false
-    per_rpc_retry_timeout : "2s"
-    rpc_retry: "5"
+    per_rpc_retry_timeout : "5s"
+    rpc_retry: "4"
   # enable OMCC encryption
   omcc_encryption: false
   # enable ONU stats
diff --git a/voltha-stack/Chart.yaml b/voltha-stack/Chart.yaml
index 1edb483..5b4e020 100644
--- a/voltha-stack/Chart.yaml
+++ b/voltha-stack/Chart.yaml
@@ -27,11 +27,11 @@
     url: "https://www.opennetworking.org"
 name: voltha-stack
 appVersion: "2.12"
-version: 2.12.2
+version: 2.12.3
 dependencies:
   - name: voltha
     repository: file://../voltha
-    version: 2.12.3
+    version: 2.12.6
     condition: voltha.enabled
   - name: voltha-adapter-openonu
     repository: file://../voltha-adapter-openonu
@@ -39,7 +39,7 @@
     condition: voltha-adapter-openonu.enabled
   - name: voltha-adapter-openolt
     repository: file://../voltha-adapter-openolt
-    version: 2.12.1
+    version: 2.12.4
     condition: voltha-adapter-openolt.enabled
   - name: voltha-go-controller
     repository: file://../voltha-go-controller
diff --git a/voltha/Chart.yaml b/voltha/Chart.yaml
index 3967d09..1a5a6dc 100644
--- a/voltha/Chart.yaml
+++ b/voltha/Chart.yaml
@@ -14,7 +14,7 @@
 ---
 apiVersion: "v1"
 name: "voltha"
-version: "2.12.3"
+version: "2.12.6"
 description: "A Helm chart for Voltha based on K8S resources in Voltha project"
 keywords:
   - "onf"