diff --git a/k8s-tools/Dockerfile b/k8s-tools/Dockerfile
index fc03c474..021e999f 100644
--- a/k8s-tools/Dockerfile
+++ b/k8s-tools/Dockerfile
@@ -32,7 +32,7 @@ RUN echo "Computed sha256sum: $(sha256sum ${CREDHUB_CLI_FILENAME})" \
 
 # We need to synchronize this kustomize version with embedded fluxcd version and kubectl embedded version !
 # renovate: datasource=github-releases depName=kubernetes-sigs/kustomize
-ENV KUSTOMIZE_VERSION 5.0.3
+ENV KUSTOMIZE_VERSION kustomize/v5.4.3
 ENV KUSTOMIZE_SUM c627b1575c3fecbc7ad1c181c23a7adcacf19732dab627eb57e89a7bc4c1e929
 ENV KUSTOMIZE_FILENAME kustomize_v${KUSTOMIZE_VERSION}_linux_amd64.tar.gz
 ADD https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize/v${KUSTOMIZE_VERSION}/kustomize_v${KUSTOMIZE_VERSION}_linux_amd64.tar.gz .
diff --git a/k8s-tools/k8s-tools_spec.rb b/k8s-tools/k8s-tools_spec.rb
index fc2dfef2..fd36b68e 100644
--- a/k8s-tools/k8s-tools_spec.rb
+++ b/k8s-tools/k8s-tools_spec.rb
@@ -5,7 +5,7 @@
 BOSH_CLI_VERSION="7.7.1" # renovate: datasource=github-releases depName=cloudfoundry/bosh-cli
 YTT_VERSION="0.50.0"  # renovate: datasource=github-releases depName=k14s/ytt
 CREDHUB_CLI_VERSION='2.9.36' # renovate: datasource=github-releases depName=cloudfoundry/credhub-cli
-KUSTOMIZE_VERSION="5.0.3" # renovate: datasource=github-releases depName=kubernetes-sigs/kustomize
+KUSTOMIZE_VERSION="kustomize/v5.4.3" # renovate: datasource=github-releases depName=kubernetes-sigs/kustomize
 KAPP_VERSION="0.63.3" # renovate: datasource=github-releases depName=k14s/kapp
 KUBECTL_VERSION="1.28.13" # renovate: datasource=github-tags depName=kubernetes/kubectl
 HELM_VERSION="3.14.4" # renovate: datasource=github-releases depName=helm/helm