diff --git a/pkg/apis/storage/types.go b/pkg/apis/storage/types.go
index 045df66c85b7d..db88831902d89 100644
--- a/pkg/apis/storage/types.go
+++ b/pkg/apis/storage/types.go
@@ -357,7 +357,7 @@ type CSIDriverSpec struct {
 	// unset or false and it can be flipped later when storage
 	// capacity information has been published.
 	//
-	// This field is immutable.
+	// This field was immutable in Kubernetes <= 1.22 and now is mutable.
 	//
 	// This is a beta field and only available when the CSIStorageCapacity
 	// feature is enabled. The default is false.
diff --git a/pkg/apis/storage/validation/validation.go b/pkg/apis/storage/validation/validation.go
index 7c6ec5daac68a..9cd48cd71764a 100644
--- a/pkg/apis/storage/validation/validation.go
+++ b/pkg/apis/storage/validation/validation.go
@@ -420,13 +420,13 @@ func ValidateCSIDriver(csiDriver *storage.CSIDriver) field.ErrorList {
 // ValidateCSIDriverUpdate validates a CSIDriver.
 func ValidateCSIDriverUpdate(new, old *storage.CSIDriver) field.ErrorList {
 	allErrs := apivalidation.ValidateObjectMetaUpdate(&new.ObjectMeta, &old.ObjectMeta, field.NewPath("metadata"))
+	allErrs = append(allErrs, validateCSIDriverSpec(&new.Spec, field.NewPath("spec"))...)
 
 	// immutable fields should not be mutated.
 	allErrs = append(allErrs, apimachineryvalidation.ValidateImmutableField(new.Spec.AttachRequired, old.Spec.AttachRequired, field.NewPath("spec", "attachedRequired"))...)
 	allErrs = append(allErrs, apimachineryvalidation.ValidateImmutableField(new.Spec.FSGroupPolicy, old.Spec.FSGroupPolicy, field.NewPath("spec", "fsGroupPolicy"))...)
 	allErrs = append(allErrs, apimachineryvalidation.ValidateImmutableField(new.Spec.PodInfoOnMount, old.Spec.PodInfoOnMount, field.NewPath("spec", "podInfoOnMount"))...)
 	allErrs = append(allErrs, apimachineryvalidation.ValidateImmutableField(new.Spec.VolumeLifecycleModes, old.Spec.VolumeLifecycleModes, field.NewPath("spec", "volumeLifecycleModes"))...)
-	allErrs = append(allErrs, apimachineryvalidation.ValidateImmutableField(new.Spec.StorageCapacity, old.Spec.StorageCapacity, field.NewPath("spec", "storageCapacity"))...)
 
 	allErrs = append(allErrs, validateTokenRequests(new.Spec.TokenRequests, field.NewPath("spec", "tokenRequests"))...)
 	return allErrs
diff --git a/pkg/apis/storage/validation/validation_test.go b/pkg/apis/storage/validation/validation_test.go
index ccc7fe7665105..7b483d48cae1a 100644
--- a/pkg/apis/storage/validation/validation_test.go
+++ b/pkg/apis/storage/validation/validation_test.go
@@ -1965,6 +1965,12 @@ func TestCSIDriverValidationUpdate(t *testing.T) {
 				new.Spec.RequiresRepublish = &requiresRepublish
 			},
 		},
+		{
+			name: "StorageCapacity changed",
+			modify: func(new *storage.CSIDriver) {
+				new.Spec.StorageCapacity = &notStorageCapacity
+			},
+		},
 	}
 	for _, test := range successCases {
 		t.Run(test.name, func(t *testing.T) {
@@ -2062,15 +2068,15 @@ func TestCSIDriverValidationUpdate(t *testing.T) {
 			},
 		},
 		{
-			name: "StorageCapacity changed",
+			name: "TokenRequests invalidated",
 			modify: func(new *storage.CSIDriver) {
-				new.Spec.StorageCapacity = &notStorageCapacity
+				new.Spec.TokenRequests = []storage.TokenRequest{{Audience: gcp}, {Audience: gcp}}
 			},
 		},
 		{
-			name: "TokenRequests invalidated",
+			name: "invalid nil StorageCapacity",
 			modify: func(new *storage.CSIDriver) {
-				new.Spec.TokenRequests = []storage.TokenRequest{{Audience: gcp}, {Audience: gcp}}
+				new.Spec.StorageCapacity = nil
 			},
 		},
 	}
diff --git a/staging/src/k8s.io/api/storage/v1/types.go b/staging/src/k8s.io/api/storage/v1/types.go
index d805e1539b041..f69b40b9ffe02 100644
--- a/staging/src/k8s.io/api/storage/v1/types.go
+++ b/staging/src/k8s.io/api/storage/v1/types.go
@@ -341,7 +341,7 @@ type CSIDriverSpec struct {
 	// unset or false and it can be flipped later when storage
 	// capacity information has been published.
 	//
-	// This field is immutable.
+	// This field was immutable in Kubernetes <= 1.22 and now is mutable.
 	//
 	// This is a beta field and only available when the CSIStorageCapacity
 	// feature is enabled. The default is false.
diff --git a/staging/src/k8s.io/api/storage/v1beta1/types.go b/staging/src/k8s.io/api/storage/v1beta1/types.go
index 9fe5646adc31e..3b74ce5eeac4a 100644
--- a/staging/src/k8s.io/api/storage/v1beta1/types.go
+++ b/staging/src/k8s.io/api/storage/v1beta1/types.go
@@ -362,7 +362,7 @@ type CSIDriverSpec struct {
 	// unset or false and it can be flipped later when storage
 	// capacity information has been published.
 	//
-	// This field is immutable.
+	// This field was immutable in Kubernetes <= 1.22 and now is mutable.
 	//
 	// This is a beta field and only available when the CSIStorageCapacity
 	// feature is enabled. The default is false.