diff --git a/ansible/playbooks/templates/custom-cilium-helmchart.yaml.j2 b/ansible/playbooks/templates/custom-cilium-helmchart.yaml.j2
index 24f7527f..43fcf4ea 100644
--- a/ansible/playbooks/templates/custom-cilium-helmchart.yaml.j2
+++ b/ansible/playbooks/templates/custom-cilium-helmchart.yaml.j2
@@ -9,7 +9,7 @@ spec:
   # renovate: datasource=helm
   repo: https://helm.cilium.io/
   chart: cilium
-  version: 1.14.6
+  version: 1.15.4
   targetNamespace: kube-system
   bootstrap: true
   valuesContent: |-
diff --git a/bootstrap/templates/ansible/playbooks/templates/custom-cilium-helmchart.yaml.j2.j2 b/bootstrap/templates/ansible/playbooks/templates/custom-cilium-helmchart.yaml.j2.j2
index 56722d7a..e2f71f52 100644
--- a/bootstrap/templates/ansible/playbooks/templates/custom-cilium-helmchart.yaml.j2.j2
+++ b/bootstrap/templates/ansible/playbooks/templates/custom-cilium-helmchart.yaml.j2.j2
@@ -10,7 +10,7 @@ spec:
   # renovate: datasource=helm
   repo: https://helm.cilium.io/
   chart: cilium
-  version: 1.14.6
+  version: 1.15.4
   targetNamespace: kube-system
   bootstrap: true
   valuesContent: |-
diff --git a/bootstrap/templates/kubernetes/apps/kube-system/cilium/app/helmrelease.yaml.j2 b/bootstrap/templates/kubernetes/apps/kube-system/cilium/app/helmrelease.yaml.j2
index ef4a56f3..49cc99d2 100644
--- a/bootstrap/templates/kubernetes/apps/kube-system/cilium/app/helmrelease.yaml.j2
+++ b/bootstrap/templates/kubernetes/apps/kube-system/cilium/app/helmrelease.yaml.j2
@@ -8,7 +8,7 @@ spec:
   chart:
     spec:
       chart: cilium
-      version: 1.14.6
+      version: 1.15.4
       sourceRef:
         kind: HelmRepository
         name: cilium
diff --git a/kubernetes/apps/kube-system/cilium/app/helmrelease.yaml b/kubernetes/apps/kube-system/cilium/app/helmrelease.yaml
index ef4a56f3..49cc99d2 100644
--- a/kubernetes/apps/kube-system/cilium/app/helmrelease.yaml
+++ b/kubernetes/apps/kube-system/cilium/app/helmrelease.yaml
@@ -8,7 +8,7 @@ spec:
   chart:
     spec:
       chart: cilium
-      version: 1.14.6
+      version: 1.15.4
       sourceRef:
         kind: HelmRepository
         name: cilium