diff --git a/package.json b/package.json
index d40fd064..5112c479 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,8 @@
     "ember-changeset-validations": "^4.1.0",
     "ember-cli-babel": "^7.26.11",
     "ember-cli-htmlbars": "^6.1.0",
-    "ember-truth-helpers": "^3.1.1"
+    "ember-truth-helpers": "^3.1.1",
+    "tracked-toolbox": "^2.0.0"
   },
   "devDependencies": {
     "@adfinis-sygroup/eslint-config": "1.5.0",