diff --git a/package.json b/package.json
index 7855da08ae53..32aeb35cc4b6 100644
--- a/package.json
+++ b/package.json
@@ -145,6 +145,8 @@
     "use-merge-value": "^1",
     "utility-types": "^3",
     "uuid": "^9",
+    "y-indexeddb": "^9.0.12",
+    "y-webrtc": "^10.3.0",
     "yaml": "^2",
     "yjs": "^13.6.14",
     "zod": "^3",
diff --git a/src/libs/sync/index.ts b/src/libs/sync/index.ts
index d573ad427920..052c373c61e8 100644
--- a/src/libs/sync/index.ts
+++ b/src/libs/sync/index.ts
@@ -84,7 +84,7 @@ class SyncBus {
       const pools = Array.from(event.keys).map(async ([id, payload]) => {
         const item: any = yItemMap.get(id);
 
-        if (item._internalUpdate) {
+        if (item?._internalUpdate) {
           return;
         }