diff --git a/libs/client/package.json b/libs/client/package.json
index 4f1b048..1e4fb65 100644
--- a/libs/client/package.json
+++ b/libs/client/package.json
@@ -30,6 +30,7 @@
   "types": "./src/index.d.ts",
   "dependencies": {
     "@msgpack/msgpack": "^3.0.0-beta2",
+    "async-sema": "^3.1.1",
     "eventsource-parser": "^1.1.2",
     "robot3": "^0.4.1"
   },