diff --git a/docs/book/src/component-config-tutorial/testdata/project/Makefile b/docs/book/src/component-config-tutorial/testdata/project/Makefile
index fa6be8303dc..751cdd77165 100644
--- a/docs/book/src/component-config-tutorial/testdata/project/Makefile
+++ b/docs/book/src/component-config-tutorial/testdata/project/Makefile
@@ -139,7 +139,7 @@ CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
 ENVTEST ?= $(LOCALBIN)/setup-envtest
 
 ## Tool Versions
-KUSTOMIZE_VERSION ?= v5.0.1
+KUSTOMIZE_VERSION ?= v5.1.1
 CONTROLLER_TOOLS_VERSION ?= v0.13.0
 
 .PHONY: kustomize
diff --git a/docs/book/src/cronjob-tutorial/testdata/project/Makefile b/docs/book/src/cronjob-tutorial/testdata/project/Makefile
index fa6be8303dc..751cdd77165 100644
--- a/docs/book/src/cronjob-tutorial/testdata/project/Makefile
+++ b/docs/book/src/cronjob-tutorial/testdata/project/Makefile
@@ -139,7 +139,7 @@ CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
 ENVTEST ?= $(LOCALBIN)/setup-envtest
 
 ## Tool Versions
-KUSTOMIZE_VERSION ?= v5.0.1
+KUSTOMIZE_VERSION ?= v5.1.1
 CONTROLLER_TOOLS_VERSION ?= v0.13.0
 
 .PHONY: kustomize
diff --git a/pkg/plugins/common/kustomize/v2/plugin.go b/pkg/plugins/common/kustomize/v2/plugin.go
index 31873e86e75..da61ac59fd8 100644
--- a/pkg/plugins/common/kustomize/v2/plugin.go
+++ b/pkg/plugins/common/kustomize/v2/plugin.go
@@ -25,7 +25,7 @@ import (
 )
 
 // KustomizeVersion is the kubernetes-sigs/kustomize version to be used in the project
-const KustomizeVersion = "v5.0.1"
+const KustomizeVersion = "v5.1.1"
 
 const pluginName = "kustomize.common." + plugins.DefaultNameQualifier
 
diff --git a/testdata/project-v4-multigroup/Makefile b/testdata/project-v4-multigroup/Makefile
index fa6be8303dc..751cdd77165 100644
--- a/testdata/project-v4-multigroup/Makefile
+++ b/testdata/project-v4-multigroup/Makefile
@@ -139,7 +139,7 @@ CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
 ENVTEST ?= $(LOCALBIN)/setup-envtest
 
 ## Tool Versions
-KUSTOMIZE_VERSION ?= v5.0.1
+KUSTOMIZE_VERSION ?= v5.1.1
 CONTROLLER_TOOLS_VERSION ?= v0.13.0
 
 .PHONY: kustomize
diff --git a/testdata/project-v4-with-deploy-image/Makefile b/testdata/project-v4-with-deploy-image/Makefile
index fa6be8303dc..751cdd77165 100644
--- a/testdata/project-v4-with-deploy-image/Makefile
+++ b/testdata/project-v4-with-deploy-image/Makefile
@@ -139,7 +139,7 @@ CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
 ENVTEST ?= $(LOCALBIN)/setup-envtest
 
 ## Tool Versions
-KUSTOMIZE_VERSION ?= v5.0.1
+KUSTOMIZE_VERSION ?= v5.1.1
 CONTROLLER_TOOLS_VERSION ?= v0.13.0
 
 .PHONY: kustomize
diff --git a/testdata/project-v4-with-grafana/Makefile b/testdata/project-v4-with-grafana/Makefile
index fa6be8303dc..751cdd77165 100644
--- a/testdata/project-v4-with-grafana/Makefile
+++ b/testdata/project-v4-with-grafana/Makefile
@@ -139,7 +139,7 @@ CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
 ENVTEST ?= $(LOCALBIN)/setup-envtest
 
 ## Tool Versions
-KUSTOMIZE_VERSION ?= v5.0.1
+KUSTOMIZE_VERSION ?= v5.1.1
 CONTROLLER_TOOLS_VERSION ?= v0.13.0
 
 .PHONY: kustomize
diff --git a/testdata/project-v4/Makefile b/testdata/project-v4/Makefile
index fa6be8303dc..751cdd77165 100644
--- a/testdata/project-v4/Makefile
+++ b/testdata/project-v4/Makefile
@@ -139,7 +139,7 @@ CONTROLLER_GEN ?= $(LOCALBIN)/controller-gen
 ENVTEST ?= $(LOCALBIN)/setup-envtest
 
 ## Tool Versions
-KUSTOMIZE_VERSION ?= v5.0.1
+KUSTOMIZE_VERSION ?= v5.1.1
 CONTROLLER_TOOLS_VERSION ?= v0.13.0
 
 .PHONY: kustomize