diff --git a/ansible/playbooks/templates/custom-cilium-helmchart.yaml.j2 b/ansible/playbooks/templates/custom-cilium-helmchart.yaml.j2
index ce0de306..db94babc 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: 1.16.0
+  version: 1.15.6
   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 f02693cb..1966aa68 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: 1.16.0
+      version: 1.15.6
       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 f02693cb..1966aa68 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: 1.16.0
+      version: 1.15.6
       sourceRef:
         kind: HelmRepository
         name: cilium