diff --git a/Makefile b/Makefile
index df765e3b60..38ccf9dea3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # Image URL to use all building/pushing image targets
 
 # renovate: datasource=github-tags depName=kubernetes-sigs/kustomize
-KUSTOMIZE_VERSION?=v5.4.3
+KUSTOMIZE_VERSION?=v5.5.0
 CHART_APPVERSION ?= v2.2.0 # x-release-please-version
 
 # renovate: datasource=docker depName=cytopia/yamllint
diff --git a/keptn-cert-manager/Makefile b/keptn-cert-manager/Makefile
index 515fee3617..43144ef804 100644
--- a/keptn-cert-manager/Makefile
+++ b/keptn-cert-manager/Makefile
@@ -120,7 +120,7 @@ ENVTEST ?= $(LOCALBIN)/setup-envtest
 ## Tool Versions
 
 # renovate: datasource=github-tags depName=kubernetes-sigs/kustomize
-KUSTOMIZE_VERSION?=v5.4.3
+KUSTOMIZE_VERSION?=v5.5.0
 # renovate: datasource=github-releases depName=kubernetes-sigs/controller-tools
 CONTROLLER_TOOLS_VERSION?=v0.16.4
 
diff --git a/lifecycle-operator/Makefile b/lifecycle-operator/Makefile
index d2556f8a25..8f1f14847a 100644
--- a/lifecycle-operator/Makefile
+++ b/lifecycle-operator/Makefile
@@ -25,7 +25,7 @@ ENVTEST_K8S_VERSION=1.27.1
 
 ## Tool Versions
 # renovate: datasource=github-tags depName=kubernetes-sigs/kustomize
-KUSTOMIZE_VERSION?=v5.4.3
+KUSTOMIZE_VERSION?=v5.5.0
 # renovate: datasource=github-releases depName=kubernetes-sigs/controller-tools
 CONTROLLER_TOOLS_VERSION?=v0.16.4
 
diff --git a/metrics-operator/Makefile b/metrics-operator/Makefile
index b8266dabdc..370980354e 100644
--- a/metrics-operator/Makefile
+++ b/metrics-operator/Makefile
@@ -25,7 +25,7 @@ ENVTEST_K8S_VERSION=1.27.1
 
 ## Tool Versions
 # renovate: datasource=github-tags depName=kubernetes-sigs/kustomize
-KUSTOMIZE_VERSION?=v5.4.3
+KUSTOMIZE_VERSION?=v5.5.0
 # renovate: datasource=github-releases depName=kubernetes-sigs/controller-tools
 CONTROLLER_TOOLS_VERSION?=v0.16.4
 
diff --git a/scheduler/Makefile b/scheduler/Makefile
index fcc5a2f4c1..7e82019804 100644
--- a/scheduler/Makefile
+++ b/scheduler/Makefile
@@ -46,7 +46,7 @@ $(LOCALBIN):
 
 ## Tool Versions
 # renovate: datasource=github-tags depName=kubernetes-sigs/kustomize
-KUSTOMIZE_VERSION ?= v5.4.3
+KUSTOMIZE_VERSION ?= v5.5.0
 
 ## Tool Binaries
 KUSTOMIZE ?= $(LOCALBIN)/kustomize