diff --git a/pkg/features/kube_features.go b/pkg/features/kube_features.go
index 853388e4d14..b4de90a6ef7 100644
--- a/pkg/features/kube_features.go
+++ b/pkg/features/kube_features.go
@@ -125,7 +125,8 @@ const (
 	TopologyManager featuregate.Feature = "TopologyManager"
 
 	// owner: @cynepco3hahue(alukiano) @cezaryzukowski @k-wiatrzyk
-	// alpha:: v1.20
+	// alpha: v1.21
+	// beta: v1.22
 
 	// Allows setting memory affinity for a container based on NUMA topology
 	MemoryManager featuregate.Feature = "MemoryManager"
@@ -736,7 +737,7 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 	ExpandInUsePersistentVolumes:                   {Default: true, PreRelease: featuregate.Beta},
 	ExpandCSIVolumes:                               {Default: true, PreRelease: featuregate.Beta},
 	CPUManager:                                     {Default: true, PreRelease: featuregate.Beta},
-	MemoryManager:                                  {Default: false, PreRelease: featuregate.Alpha},
+	MemoryManager:                                  {Default: true, PreRelease: featuregate.Beta},
 	CPUCFSQuotaPeriod:                              {Default: false, PreRelease: featuregate.Alpha},
 	TopologyManager:                                {Default: true, PreRelease: featuregate.Beta},
 	StorageObjectInUseProtection:                   {Default: true, PreRelease: featuregate.GA},
diff --git a/test/e2e_node/memory_manager_test.go b/test/e2e_node/memory_manager_test.go
index d098d10b356..82ce1330366 100644
--- a/test/e2e_node/memory_manager_test.go
+++ b/test/e2e_node/memory_manager_test.go
@@ -176,7 +176,6 @@ func getAllocatableMemoryFromStateFile(s *state.MemoryManagerCheckpoint) []state
 }
 
 type kubeletParams struct {
-	memoryManagerFeatureGate              bool
 	podResourcesGetAllocatableFeatureGate bool
 	memoryManagerPolicy                   string
 	systemReservedMemory                  []kubeletconfig.MemoryReservation
@@ -191,7 +190,7 @@ func getUpdatedKubeletConfig(oldCfg *kubeletconfig.KubeletConfiguration, params
 	if newCfg.FeatureGates == nil {
 		newCfg.FeatureGates = map[string]bool{}
 	}
-	newCfg.FeatureGates["MemoryManager"] = params.memoryManagerFeatureGate
+
 	newCfg.FeatureGates["KubeletPodResourcesGetAllocatable"] = params.podResourcesGetAllocatableFeatureGate
 
 	newCfg.MemoryManagerPolicy = params.memoryManagerPolicy
@@ -268,7 +267,7 @@ func getAllNUMANodes() []int {
 }
 
 // Serial because the test updates kubelet configuration.
-var _ = SIGDescribe("Memory Manager [Serial] [Feature:MemoryManager][NodeAlphaFeature:MemoryManager]", func() {
+var _ = SIGDescribe("Memory Manager [Serial] [Feature:MemoryManager]", func() {
 	// TODO: add more complex tests that will include interaction between CPUManager, MemoryManager and TopologyManager
 	var (
 		allNUMANodes             []int
@@ -284,7 +283,6 @@ var _ = SIGDescribe("Memory Manager [Serial] [Feature:MemoryManager][NodeAlphaFe
 
 	memoryQuantity := resource.MustParse("1100Mi")
 	defaultKubeParams := &kubeletParams{
-		memoryManagerFeatureGate:              true,
 		podResourcesGetAllocatableFeatureGate: true,
 		systemReservedMemory: []kubeletconfig.MemoryReservation{
 			{