diff --git a/projects/grafana/values/kube-prometheus-stack.yaml b/projects/grafana/values/kube-prometheus-stack.yaml
index a35db140..c32888f2 100644
--- a/projects/grafana/values/kube-prometheus-stack.yaml
+++ b/projects/grafana/values/kube-prometheus-stack.yaml
@@ -1754,7 +1754,7 @@ prometheusOperator:
   ##
   thanosImage:
     repository: quay.io/thanos/thanos
-    tag: v0.25.2
+    tag: v0.26.0
     sha: ""
 
   ## Set a Field Selector to filter watched secrets