diff --git a/packages/sprotty/tsconfig.json b/packages/sprotty/tsconfig.json
index fc3e34fa..36b256ae 100644
--- a/packages/sprotty/tsconfig.json
+++ b/packages/sprotty/tsconfig.json
@@ -8,7 +8,5 @@
   ],
   "exclude": [
     "**/*.spec.ts", "**/*.spec.tsx", "src/utils/test-helper.ts"
-  ],
-  "experimentalDecorators": true,
-  "emitDecoratorMetadata": true
+  ]
 }
\ No newline at end of file