diff --git a/pkg/features/kube_features.go b/pkg/features/kube_features.go
index 25394d08882..960775916c4 100644
--- a/pkg/features/kube_features.go
+++ b/pkg/features/kube_features.go
@@ -636,7 +636,6 @@ const (
 
 	// owner: @derekwaynecarr
 	// alpha: v1.20
-	// beta: v1.21
 	//
 	// Enables kubelet support to size memory backed volumes
 	SizeMemoryBackedVolumes featuregate.Feature = "SizeMemoryBackedVolumes"
@@ -849,7 +848,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 	DisableAcceleratorUsageMetrics:                 {Default: true, PreRelease: featuregate.Beta},
 	HPAContainerMetrics:                            {Default: false, PreRelease: featuregate.Alpha},
 	RootCAConfigMap:                                {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.22
-	SizeMemoryBackedVolumes:                        {Default: true, PreRelease: featuregate.Beta},
+	SizeMemoryBackedVolumes:                        {Default: false, PreRelease: featuregate.Alpha},
 	ExecProbeTimeout:                               {Default: true, PreRelease: featuregate.GA}, // lock to default and remove after v1.22 based on KEP #1972 update
 	KubeletCredentialProviders:                     {Default: false, PreRelease: featuregate.Alpha},
 	GracefulNodeShutdown:                           {Default: true, PreRelease: featuregate.Beta},