diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3267ac1b..78c546d5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
 * [BUGFIX] Fix restarting query-schedulers when config changes #559
 * [ENHANCEMENT] Run overrides-exporter with high availability #557
 * [DEPENDENCY] Update dependency nginx to v1.29 #540
+* [DEPENDENCY] Update kiwigrid/k8s-sidecar docker tag to v1.30.11 #547
 * [DEPENDENCY] Update kiwigrid/k8s-sidecar docker tag to v1.30.5 #531
 * [DEPENDENCY] Update quay.io/cortexproject/cortex Docker tag to v1.20.0 #566
 
diff --git a/README.md b/README.md
index 0f617dfd..80e56d24 100644
--- a/README.md
+++ b/README.md
@@ -143,7 +143,7 @@ Kubernetes: `^1.19.0-0`
 | alertmanager.​sidecar.​folderAnnotation | string | `"k8s-sidecar-target-directory"` | The annotation the sidecar will look for in ConfigMaps and/or Secrets to override the destination folder for files. If the value is a relative path, it will be relative to FOLDER |
 | alertmanager.​sidecar.​image.​repository | string | `"kiwigrid/k8s-sidecar"` |  |
 | alertmanager.​sidecar.​image.​sha | string | `""` |  |
-| alertmanager.​sidecar.​image.​tag | string | `"1.30.5"` |  |
+| alertmanager.​sidecar.​image.​tag | string | `"1.30.11"` |  |
 | alertmanager.​sidecar.​imagePullPolicy | string | `"IfNotPresent"` |  |
 | alertmanager.​sidecar.​label | string | `"cortex_alertmanager"` | Label that should be used for filtering |
 | alertmanager.​sidecar.​labelValue | string | `""` | The value for the label you want to filter your resources on. Don't set a value to filter by any value |
@@ -782,7 +782,7 @@ Kubernetes: `^1.19.0-0`
 | ruler.​sidecar.​folderAnnotation | string | `"k8s-sidecar-target-directory"` | The annotation the sidecar will look for in ConfigMaps and/or Secrets to override the destination folder for files. If the value is a relative path, it will be relative to FOLDER |
 | ruler.​sidecar.​image.​repository | string | `"kiwigrid/k8s-sidecar"` |  |
 | ruler.​sidecar.​image.​sha | string | `""` |  |
-| ruler.​sidecar.​image.​tag | string | `"1.30.5"` |  |
+| ruler.​sidecar.​image.​tag | string | `"1.30.11"` |  |
 | ruler.​sidecar.​imagePullPolicy | string | `"IfNotPresent"` |  |
 | ruler.​sidecar.​label | string | `"cortex_rules"` | label that the configmaps with rules are marked with |
 | ruler.​sidecar.​labelValue | string | `""` | The value for the label you want to filter your resources on. Don't set a value to filter by any value |
diff --git a/values.yaml b/values.yaml
index 18887fa4..1c057322 100644
--- a/values.yaml
+++ b/values.yaml
@@ -283,7 +283,7 @@ alertmanager:
     enabled: false
     image:
       repository: kiwigrid/k8s-sidecar
-      tag: 1.30.5
+      tag: 1.30.11
       sha: ""
     imagePullPolicy: IfNotPresent
     resources: {}
@@ -699,7 +699,7 @@ ruler:
     enabled: false
     image:
       repository: kiwigrid/k8s-sidecar
-      tag: 1.30.5
+      tag: 1.30.11
       sha: ""
     imagePullPolicy: IfNotPresent
     resources: {}