diff --git a/src/index.ts b/src/index.ts
index 690142d5..1996f6b8 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -295,6 +295,8 @@ export * from "./gfx/renderJob/post/PostBase"
 export * from "./gfx/renderJob/post/SSRPost"
 export * from "./gfx/renderJob/post/TAAPost"
 export * from "./io/InputSystem"
+export * from "./io/OutlineManager"
+export * from "./io/OutlinePostData"
 export * from "./io/PickFire"
 export * from "./io/PickResult"
 export * from "./io/RayCastMeshDetail"
diff --git a/src/io/OutlineManager.ts b/src/io/OutlineManager.ts
index 3c79a72b..5b91379a 100644
--- a/src/io/OutlineManager.ts
+++ b/src/io/OutlineManager.ts
@@ -1,4 +1,7 @@
-import { Object3D, Color, MeshRenderer, outlinePostData } from "@orillusion/core";
+import { MeshRenderer } from "../components/renderer/MeshRenderer";
+import { Object3D } from "../core/entities/Object3D";
+import { Color } from "../math/Color";
+import { outlinePostData } from "./OutlinePostData";
 
 /**
  * manager of outline effect