diff --git a/hack/Dockerfile.unit b/hack/Dockerfile.unit
deleted file mode 100644
index 4f0f11dc..00000000
--- a/hack/Dockerfile.unit
+++ /dev/null
@@ -1,6 +0,0 @@
-FROM registry.hub.docker.com/library/golang:1.18
-
-WORKDIR /usr/local/kubebuilder
-COPY /hack/tools /usr/local/kubebuilder/
-RUN ./install_kustomize.sh && \
-    ./install_kubebuilder.sh