diff --git a/Makefile b/Makefile
index f50ee6d..d961e5c 100644
--- a/Makefile
+++ b/Makefile
@@ -210,7 +210,7 @@ GOLANGCI_LINT = $(LOCALBIN)/golangci-lint-$(GOLANGCI_LINT_VERSION)
 
 ## Tool Versions
 KUSTOMIZE_VERSION ?= v5.8.1 # github-releases:kubernetes-sigs/kustomize:kustomize/(?<version>.*)
-CONTROLLER_TOOLS_VERSION ?= v0.20.1 # github-releases:kubernetes-sigs/controller-tools
+CONTROLLER_TOOLS_VERSION ?= v0.21.0 # github-releases:kubernetes-sigs/controller-tools
 ENVTEST_VERSION ?= release-0.19 # github-releases:kubernetes-sigs/controller-runtime
 GOLANGCI_LINT_VERSION ?= v2.11.4 # github-releases:golangci/golangci-lint