diff --git a/packages/objectsender/package.json b/packages/objectsender/package.json
index d57c5f3c2..07f992294 100644
--- a/packages/objectsender/package.json
+++ b/packages/objectsender/package.json
@@ -34,7 +34,8 @@
   "dependencies": {
     "@speckle/shared": "workspace:^",
     "lodash": "^4.17.21",
-    "lodash-es": "^4.17.21"
+    "lodash-es": "^4.17.21",
+    "reflect-metadata": "^0.2.2"
   },
   "devDependencies": {
     "@types/lodash": "^4.17.5",
diff --git a/packages/objectsender/tsconfig.json b/packages/objectsender/tsconfig.json
index 75abdef26..2668d41ee 100644
--- a/packages/objectsender/tsconfig.json
+++ b/packages/objectsender/tsconfig.json
@@ -6,6 +6,10 @@
     "lib": ["ES2020", "DOM", "DOM.Iterable"],
     "skipLibCheck": true,
 
+    /* Decorators */
+    "experimentalDecorators": true,
+    "emitDecoratorMetadata": true,
+
     /* Bundler mode */
     "moduleResolution": "bundler",
     "allowImportingTsExtensions": true,
diff --git a/yarn.lock b/yarn.lock
index 0eada8e5f..086442310 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -15628,6 +15628,7 @@ __metadata:
     lodash: "npm:^4.17.21"
     lodash-es: "npm:^4.17.21"
     prettier: "npm:^3.3.2"
+    reflect-metadata: "npm:^0.2.2"
     typescript: "npm:^5.2.2"
     vite: "npm:^5.2.0"
     vite-plugin-dts: "npm:^3.9.1"
@@ -44690,6 +44691,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"reflect-metadata@npm:^0.2.2":
+  version: 0.2.2
+  resolution: "reflect-metadata@npm:0.2.2"
+  checksum: 10/1c93f9ac790fea1c852fde80c91b2760420069f4862f28e6fae0c00c6937a56508716b0ed2419ab02869dd488d123c4ab92d062ae84e8739ea7417fae10c4745
+  languageName: node
+  linkType: hard
+
 "regenerate-unicode-properties@npm:^10.0.1":
   version: 10.0.1
   resolution: "regenerate-unicode-properties@npm:10.0.1"