diff --git a/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10FastSpringboneRuntime.cs b/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10FastSpringboneRuntime.cs
index 438f74963..4f26d93d1 100644
--- a/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10FastSpringboneRuntime.cs
+++ b/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10FastSpringboneRuntime.cs
@@ -93,7 +93,7 @@ namespace UniVRM10
                 m_fastSpringBoneService.BufferCombiner.Unregister(m_fastSpringBoneBuffer);
             }
 
-            m_fastSpringBoneBuffer = await FastSpringBoneBufferFactory.ConstructSpringBoneAsync(new ImmediateCaller(), m_instance, m_fastSpringBoneBuffer);
+            m_fastSpringBoneBuffer = await FastSpringBoneBufferFactory.ConstructSpringBoneAsync(awaitCaller, m_instance, m_fastSpringBoneBuffer);
 
             // 登録
             m_fastSpringBoneService.BufferCombiner.Register(m_fastSpringBoneBuffer);
diff --git a/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10FastSpringboneRuntimeStandalone.cs b/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10FastSpringboneRuntimeStandalone.cs
index e45218ff5..31153063d 100644
--- a/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10FastSpringboneRuntimeStandalone.cs
+++ b/Assets/VRM10/Runtime/Components/Vrm10Runtime/Vrm10FastSpringboneRuntimeStandalone.cs
@@ -94,7 +94,7 @@ namespace UniVRM10
                 m_bufferCombiner.Unregister(m_fastSpringBoneBuffer);
             }
 
-            m_fastSpringBoneBuffer = await FastSpringBoneBufferFactory.ConstructSpringBoneAsync(new ImmediateCaller(), m_instance, m_fastSpringBoneBuffer);
+            m_fastSpringBoneBuffer = await FastSpringBoneBufferFactory.ConstructSpringBoneAsync(awaitCaller, m_instance, m_fastSpringBoneBuffer);
 
             // 登録
             m_bufferCombiner.Register(m_fastSpringBoneBuffer);