diff --git a/charts/harmony-chart/Chart.lock b/charts/harmony-chart/Chart.lock
index f2d6d74..a61458b 100644
--- a/charts/harmony-chart/Chart.lock
+++ b/charts/harmony-chart/Chart.lock
@@ -16,7 +16,7 @@ dependencies:
   version: 8.5.1
 - name: opensearch
   repository: https://opensearch-project.github.io/helm-charts
-  version: 2.13.3
+  version: 2.36.0
 - name: karpenter
   repository: oci://public.ecr.aws/karpenter
   version: 1.0.8
@@ -35,5 +35,5 @@ dependencies:
 - name: vector
   repository: https://helm.vector.dev
   version: 0.37.0
-digest: sha256:b10f30c52b1fda8d9c0527d51018507d173faca4288de3c3d4167bf65d076ea5
-generated: "2025-08-18T10:00:35.309520799Z"
+digest: sha256:aa3aeff8baf2dba5db06f9b3e88d29532a75149b4ba27ebf2ed8290b4c23c39e
+generated: "2025-12-31T16:02:17.004190935Z"
diff --git a/charts/harmony-chart/Chart.yaml b/charts/harmony-chart/Chart.yaml
index 428ee2d..2189fe5 100644
--- a/charts/harmony-chart/Chart.yaml
+++ b/charts/harmony-chart/Chart.yaml
@@ -44,7 +44,7 @@ dependencies:
     repository: https://helm.elastic.co
 
   - name: opensearch
-    version: "2.13.3"
+    version: "2.36.0"
     condition: opensearch.enabled
     repository: https://opensearch-project.github.io/helm-charts