diff --git a/packages/blockly/package.json b/packages/blockly/package.json
index a6ea2529744..98ebc5a1c25 100644
--- a/packages/blockly/package.json
+++ b/packages/blockly/package.json
@@ -67,7 +67,7 @@
     "package": "gulp pack",
     "prepareDemos": "gulp prepareDemos",
     "start": "npm run build && concurrently -n tsc,server \"tsc --watch --preserveWatchOutput --outDir \"build/src\" --declarationDir \"build/declarations\"\" \"http-server ./ -s -o /tests/playground.html -c-1\"",
-    "start:advanced": "npm run package && npx nx run @blockly/dev-tools:build && npm run start --workspace=@blockly/dev-tools && npx nx watch --projects=@blockly/dev-tools --includeDependencies -- nx run-many -t build -p \\$NX_PROJECT_NAME --exclude=@blockly/dev-tools",
+    "start:advanced": "npm run package && npx nx run @blockly/dev-tools:build && concurrently  -n server,watch \"npx nx run @blockly/dev-tools:start\" \"npx nx watch --projects=@blockly/dev-tools --includeDependencies -- npm run build\"",
     "tsc": "gulp tsc",
     "test": "gulp test",
     "test:browser": "npx mocha --config tests/browser/.mocharc.js",