diff --git a/Assets/VRM10/Runtime/FastSpringBone/FastSpringBoneService.cs b/Assets/VRM10/Runtime/FastSpringBone/FastSpringBoneService.cs
index 51a76d887..45be4e92d 100644
--- a/Assets/VRM10/Runtime/FastSpringBone/FastSpringBoneService.cs
+++ b/Assets/VRM10/Runtime/FastSpringBone/FastSpringBoneService.cs
@@ -1,4 +1,5 @@
 using UniGLTF.SpringBoneJobs;
+using Unity.Jobs;
 using UnityEngine;
 
 namespace UniVRM10.FastSpringBones
@@ -95,12 +96,17 @@ namespace UniVRM10.FastSpringBones
         }
 
         public void ManualUpdate(float deltaTime)
+        {
+            ManualUpdate(deltaTime, null).Complete();
+        }
+        
+        public JobHandle ManualUpdate(in float deltaTime, in JobHandle? dependency = null)
         {
             if (UpdateType != UpdateTypes.Manual)
             {
                 throw new global::System.ArgumentException("require UpdateTypes.Manual");
             }
-            _fastSpringBoneScheduler.Schedule(deltaTime).Complete();
+            return _fastSpringBoneScheduler.Schedule(deltaTime, dependency);
         }
 
         public void OnDrawGizmosSelected()