diff --git a/package.json b/package.json
index 04f0e2a..6a76ed0 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,8 @@
     "watch": "mocha --watch",
     "build.web": "browserify ./lib/vcd-web.js | terser --compress -o demo/vcd-web.min.js",
     "watch.web": "watchify ./lib/vcd-web.js -o demo/vcd-web.min.js -v",
+    "watch.test2": "watchify ./lib/test2.js -o ./v2/main.js -v",
+    "watch.vcd-worker": "watchify ./lib/vcd-worker.js -o ./v2/vcd-worker.js -v",
     "install": "node bin/build.js",
     "prepare": "node bin/build.js"
   },
@@ -41,20 +43,22 @@
   "homepage": "https://github.com/wavedrom/vcd#readme",
   "dependencies": {
     "bindings": "^1.5.0",
-    "dot-prop": "^6.0.1",
+    "dot-prop": "^9.0.0",
     "llparse": "^7.1.1"
   },
   "devDependencies": {
-    "@drom/eslint-config": "^0.12.0",
-    "browserify": "^17.0.0",
-    "chai": "^4.4.1",
-    "eslint": "^8.13.0",
+    "@drom/eslint-config": "0.12.0",
+    "browserify": "^17.0.1",
+    "chai": "5.1.2",
+    "chokidar": "4.0.3",
+    "commander": "^13.0.0",
+    "eslint": "^8.57.1",
     "fs-extra": "^11.2.0",
     "http-server": "^14.1.0",
     "llparse-dot": "^1.0.1",
-    "mocha": "^9.2.1",
-    "node-gyp": "^10.0.0",
-    "nyc": "^15.1.0",
+    "mocha": "^11.0.1",
+    "node-gyp": "^11.0.0",
+    "nyc": "^17.1.0",
     "terser": "^5.27.0",
     "watchify": "^4.0.0"
   },