diff --git a/frontend/package.json b/frontend/package.json
index 2232337..c76247c 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -13,7 +13,9 @@
   "dependencies": {
     "react": "^19.0.0",
     "react-dom": "^19.0.0",
-    "rbush": "^3.0.1"
+    "rbush": "^3.0.1",
+    "yjs": "^13.6.20",
+    "y-websocket": "^2.0.4"
   },
   "devDependencies": {
     "@types/react": "^19.0.0",