diff --git a/charts/aoi/values.yaml b/charts/aoi/values.yaml
index b3a7e7c..e0faad7 100644
--- a/charts/aoi/values.yaml
+++ b/charts/aoi/values.yaml
@@ -381,7 +381,7 @@ alerting:
           image:
             registry: docker.io
             repository: kiwigrid/k8s-sidecar
-            tag: "1.26.1@sha256:b8d5067137fec093cf48670dc3a1dbb38f9e734f3a6683015c2e89a45db5fd16"
+            tag: "1.28.1@sha256:707875abfd38af450ff420c6f271e883fc28e9ce4d3742741af993b25ae93f85"
             pullPolicy: Always
           resources:
             limits: