diff --git a/packages/graph/package.json b/packages/graph/package.json
index 8783dab..dd63d61 100644
--- a/packages/graph/package.json
+++ b/packages/graph/package.json
@@ -67,6 +67,7 @@
     "worker-loader": "^3.0.7"
   },
   "dependencies": {
-    "@antv/util": "^2.0.13"
+    "@antv/util": "^2.0.13",
+    "tslib": "^2.0.0"
   }
 }