diff --git a/kubernetes/apps/monitoring/thanos/app/helmrelease.yaml b/kubernetes/apps/monitoring/thanos/app/helmrelease.yaml
index e8537a3c9d..f1ddc1c604 100644
--- a/kubernetes/apps/monitoring/thanos/app/helmrelease.yaml
+++ b/kubernetes/apps/monitoring/thanos/app/helmrelease.yaml
@@ -8,7 +8,7 @@ spec:
   chart:
     spec:
       chart: thanos
-      version: 15.7.20
+      version: 15.7.21
       sourceRef:
         kind: HelmRepository
         name: bitnami-charts