diff --git a/test/Dockerfile.distro b/test/Dockerfile.distro
index cab6c05128..eef832ce5b 100644
--- a/test/Dockerfile.distro
+++ b/test/Dockerfile.distro
@@ -86,7 +86,7 @@ RUN install-tool helmfile v1.2.3
 RUN install-tool kubectl v1.35.0
 
 # renovate: datasource=github-releases packageName=kubernetes-sigs/kustomize
-RUN install-tool kustomize 5.8.0
+RUN install-tool kustomize 5.8.1
 
 # renovate: datasource=datasource=github-releases packageName=containerbase/nix-prebuild
 RUN install-tool nix 2.24.10
diff --git a/test/latest/Dockerfile b/test/latest/Dockerfile
index cb86518f28..f062fb2be3 100644
--- a/test/latest/Dockerfile
+++ b/test/latest/Dockerfile
@@ -256,7 +256,7 @@ ARG VENDIR_VERSION=v0.45.1
 ARG HELMFILE_VERSION=v1.2.3
 
 # renovate: datasource=github-releases depName=kustomize packageName=kubernetes-sigs/kustomize
-ARG KUSTOMIZE_VERSION=5.8.0
+ARG KUSTOMIZE_VERSION=5.8.1
 
 RUN install-tool vendir "${VENDIR_VERSION}"
 
diff --git a/test/latest/Dockerfile.arm64 b/test/latest/Dockerfile.arm64
index 81e4d90758..d2e34dbcfa 100644
--- a/test/latest/Dockerfile.arm64
+++ b/test/latest/Dockerfile.arm64
@@ -129,7 +129,7 @@ RUN install-tool helmfile v1.2.3
 FROM base AS test-kustomize
 
 # renovate: datasource=github-releases packageName=kubernetes-sigs/kustomize
-RUN install-tool kustomize 5.8.0
+RUN install-tool kustomize 5.8.1
 
 #--------------------------------------
 # Image: terraform