diff --git a/pkg/features/kube_features.go b/pkg/features/kube_features.go
index 65765d3e8d9..d78e2da640b 100644
--- a/pkg/features/kube_features.go
+++ b/pkg/features/kube_features.go
@@ -1126,7 +1126,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 
 	genericfeatures.ValidatingAdmissionPolicy: {Default: false, PreRelease: featuregate.Beta},
 
-	genericfeatures.CustomResourceValidationExpressions: {Default: true, PreRelease: featuregate.Beta},
+	genericfeatures.CustomResourceValidationExpressions: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.31
 
 	genericfeatures.OpenAPIEnums: {Default: true, PreRelease: featuregate.Beta},
 
diff --git a/staging/src/k8s.io/apiserver/pkg/features/kube_features.go b/staging/src/k8s.io/apiserver/pkg/features/kube_features.go
index c7d699d5405..65ec542de50 100644
--- a/staging/src/k8s.io/apiserver/pkg/features/kube_features.go
+++ b/staging/src/k8s.io/apiserver/pkg/features/kube_features.go
@@ -100,6 +100,7 @@ const (
 	// kep: https://kep.k8s.io/2876
 	// alpha: v1.23
 	// beta: v1.25
+	// stable: v1.29
 	//
 	// Enables expression validation for Custom Resource
 	CustomResourceValidationExpressions featuregate.Feature = "CustomResourceValidationExpressions"
@@ -284,7 +285,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 
 	ValidatingAdmissionPolicy: {Default: false, PreRelease: featuregate.Beta},
 
-	CustomResourceValidationExpressions: {Default: true, PreRelease: featuregate.Beta},
+	CustomResourceValidationExpressions: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.31
 
 	EfficientWatchResumption: {Default: true, PreRelease: featuregate.GA, LockToDefault: true},