diff --git a/back/package.json b/back/package.json
index e9a4d4fc..9bec3c03 100644
--- a/back/package.json
+++ b/back/package.json
@@ -5,14 +5,12 @@
   "main": "index.js",
   "scripts": {
     "tsc": "tsc",
-    "dev": "concurrently \"yarn run proto:watch\" \"ts-node-dev --respawn --transpileOnly ./server.ts\"",
+    "dev": "ts-node-dev --respawn --transpileOnly ./server.ts",
     "prod": "tsc && node ./dist/server.js",
     "profile": "tsc && node --prof ./dist/server.js",
     "test": "ts-node node_modules/jasmine/bin/jasmine --config=jasmine.json",
     "lint": "node_modules/.bin/eslint src/ . --ext .ts",
     "fix": "node_modules/.bin/eslint --fix src/ . --ext .ts",
-    "proto": "protoc --plugin=\"protoc-gen-ts=./node_modules/.bin/protoc-gen-ts\" --js_out=\"import_style=commonjs,binary:src/messages/generated\" --ts_out=\"src/messages/generated\" src/messages/messages.proto",
-    "proto:watch": "inotifywait -q -m -e close_write src/messages/messages.proto | while read -r filename event; do yarn run proto; done"
   },
   "repository": {
     "type": "git",
@@ -38,11 +36,6 @@
   },
   "homepage": "https://github.com/thecodingmachine/workadventure#readme",
   "dependencies": {
-    "@types/express": "^4.17.4",
-    "@types/http-status-codes": "^1.2.0",
-    "@types/jsonwebtoken": "^8.3.8",
-    "@types/socket.io": "^2.1.4",
-    "@types/uuidv4": "^5.0.0",
     "body-parser": "^1.19.0",
     "express": "^4.17.1",
     "generic-type-guard": "^3.2.0",
@@ -56,13 +49,15 @@
     "uuidv4": "^6.0.7"
   },
   "devDependencies": {
-    "@types/google-protobuf": "^3.7.3",
+    "@types/express": "^4.17.4",
+    "@types/http-status-codes": "^1.2.0",
     "@types/jasmine": "^3.5.10",
+    "@types/jsonwebtoken": "^8.3.8",
+    "@types/socket.io": "^2.1.4",
+    "@types/uuidv4": "^5.0.0",
     "@typescript-eslint/eslint-plugin": "^2.26.0",
     "@typescript-eslint/parser": "^2.26.0",
-    "concurrently": "^5.3.0",
     "eslint": "^6.8.0",
     "jasmine": "^3.5.0",
-    "ts-protoc-gen": "^0.13.0"
   }
 }