diff --git a/Earthfile b/Earthfile
index 62dadcb1b..fc7b87782 100644
--- a/Earthfile
+++ b/Earthfile
@@ -33,7 +33,7 @@ tracked-files:
 
 kustomize-build:
     # renovate: datasource=docker depName=registry.k8s.io/kustomize/kustomize
-    ARG KUSTOMIZE_VERSION=v5.4.2
+    ARG KUSTOMIZE_VERSION=v5.4.3
     FROM registry.k8s.io/kustomize/kustomize:$KUSTOMIZE_VERSION
     COPY +helm/binary /usr/local/bin/helm
     COPY kustomization kustomization
diff --git a/roles/devsetup/tasks/main.yml b/roles/devsetup/tasks/main.yml
index 3a23bc4a2..a02f33067 100644
--- a/roles/devsetup/tasks/main.yml
+++ b/roles/devsetup/tasks/main.yml
@@ -72,7 +72,7 @@
     # renovate: datasource=github-releases depName=kubernetes/kubernetes
     kubectl_version: v1.30.3
     # renovate: datasource=docker depName=registry.k8s.io/kustomize/kustomize
-    kustomize_version: v5.4.2
+    kustomize_version: v5.4.3
     # renovate: datasource=github-releases depName=starship/starship
     starship_version: v1.19.0
     # renovate: datasource=github-releases depName=kubevirt/kubevirt