diff --git a/otc/observability.think-ahead.cloud/stacks/observability/victoria-k8s-stack/values.yaml b/otc/observability.think-ahead.cloud/stacks/observability/victoria-k8s-stack/values.yaml
index 1d07ce4..d717918 100644
--- a/otc/observability.think-ahead.cloud/stacks/observability/victoria-k8s-stack/values.yaml
+++ b/otc/observability.think-ahead.cloud/stacks/observability/victoria-k8s-stack/values.yaml
@@ -831,9 +831,9 @@ defaultDatasources:
     spec:
       plugins:
         - name: victoriametrics-metrics-datasource
-          version: latest
+          version: 0.16.0
         - name: victoriametrics-logs-datasource
-          version: latest
+          version: 0.17.0
       instanceSelector:
         matchLabels:
           dashboards: grafana