diff --git a/Dockerfile b/Dockerfile
index d5e4002..73e1ca9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM ghcr.io/dockhippie/golang:1.23 AS build
 
 # renovate: datasource=github-releases depName=kubernetes-sigs/kustomize
-ENV KUSTOMIZE_VERSION=5.5.0
+ENV KUSTOMIZE_VERSION=5.6.0
 
 # renovate: datasource=github-releases depName=viaduct-ai/kustomize-sops
 ENV KSOPS_VERSION=4.3.2