diff --git a/CHANGELOG.md b/CHANGELOG.md
index 94b47cd7..f214034e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 * [ENHANCEMENT] Update helm values and documentation for rollout operator #673
 * [DEPENDENCY] Update Helm release rollout-operator to v0.52.0 #670
 * [DEPENDENCY] Update kiwigrid/k8s-sidecar docker tag to v2.13.3 #677
+* [DEPENDENCY] Update kiwigrid/k8s-sidecar docker tag to v2.14.1 #678
 
 ## 3.4.0 / 2026-09-21
 
diff --git a/README.md b/README.md
index 138d5472..e747360e 100644
--- a/README.md
+++ b/README.md
@@ -147,7 +147,7 @@ Kubernetes: `^1.19.0-0`
 | alertmanager.​sidecar.​healthPort | int | `8081` | The port the kiwigrid/k8s-sidecar listens on for health checks. The image default matches the cortex default listen port (8080), so it must be overridden here. |
 | alertmanager.​sidecar.​image.​repository | string | `"kiwigrid/k8s-sidecar"` |  |
 | alertmanager.​sidecar.​image.​sha | string | `""` |  |
-| alertmanager.​sidecar.​image.​tag | string | `"2.13.3"` |  |
+| alertmanager.​sidecar.​image.​tag | string | `"2.14.1"` |  |
 | 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 |
@@ -874,7 +874,7 @@ Kubernetes: `^1.19.0-0`
 | ruler.​sidecar.​healthPort | int | `8081` | The port the kiwigrid/k8s-sidecar listens on for health checks. The image default matches the cortex default listen port (8080), so it must be overridden here. |
 | ruler.​sidecar.​image.​repository | string | `"kiwigrid/k8s-sidecar"` |  |
 | ruler.​sidecar.​image.​sha | string | `""` |  |
-| ruler.​sidecar.​image.​tag | string | `"2.13.3"` |  |
+| ruler.​sidecar.​image.​tag | string | `"2.14.1"` |  |
 | 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 4b2fd7e8..7a307571 100644
--- a/values.yaml
+++ b/values.yaml
@@ -284,7 +284,7 @@ alertmanager:
     enabled: false
     image:
       repository: kiwigrid/k8s-sidecar
-      tag: 2.13.3
+      tag: 2.14.1
       sha: ""
     imagePullPolicy: IfNotPresent
     resources: {}
@@ -737,7 +737,7 @@ ruler:
     enabled: false
     image:
       repository: kiwigrid/k8s-sidecar
-      tag: 2.13.3
+      tag: 2.14.1
       sha: ""
     imagePullPolicy: IfNotPresent
     resources: {}