diff --git a/helm-chart/kuberay-operator/README.md b/helm-chart/kuberay-operator/README.md
index f9ebce59eba..b3a3be195af 100644
--- a/helm-chart/kuberay-operator/README.md
+++ b/helm-chart/kuberay-operator/README.md
@@ -178,7 +178,7 @@ spec:
 | featureGates[2].name | string | `"RayMultiHostIndexing"` |  |
 | featureGates[2].enabled | bool | `true` |  |
 | featureGates[3].name | string | `"RayServiceIncrementalUpgrade"` |  |
-| featureGates[3].enabled | bool | `true` |  |
+| featureGates[3].enabled | bool | `false` |  |
 | featureGates[4].name | string | `"RayCronJob"` |  |
 | featureGates[4].enabled | bool | `false` |  |
 | metrics.enabled | bool | `true` | Whether KubeRay operator should emit control plane metrics. |
diff --git a/helm-chart/kuberay-operator/values.yaml b/helm-chart/kuberay-operator/values.yaml
index b50049cf1f9..8810d0305b4 100644
--- a/helm-chart/kuberay-operator/values.yaml
+++ b/helm-chart/kuberay-operator/values.yaml
@@ -139,7 +139,7 @@ featureGates:
 - name: RayMultiHostIndexing
   enabled: true
 - name: RayServiceIncrementalUpgrade
-  enabled: true
+  enabled: false
 - name: RayCronJob
   enabled: false
 
diff --git a/ray-operator/pkg/features/features.go b/ray-operator/pkg/features/features.go
index d82b72b606f..f0bc817e6f1 100644
--- a/ray-operator/pkg/features/features.go
+++ b/ray-operator/pkg/features/features.go
@@ -64,7 +64,7 @@ var defaultFeatureGates = map[featuregate.Feature]featuregate.FeatureSpec{
 	RayClusterStatusConditions:   {Default: true, PreRelease: featuregate.Beta},
 	RayJobDeletionPolicy:         {Default: true, PreRelease: featuregate.Beta},
 	RayMultiHostIndexing:         {Default: true, PreRelease: featuregate.Beta},
-	RayServiceIncrementalUpgrade: {Default: true, PreRelease: featuregate.Beta},
+	RayServiceIncrementalUpgrade: {Default: false, PreRelease: featuregate.Alpha},
 	RayCronJob:                   {Default: false, PreRelease: featuregate.Alpha},
 	AsyncJobInfoQuery:            {Default: false, PreRelease: featuregate.Alpha},
 }