diff --git a/package.json b/package.json
index b18cef6e0e..ad52d403b0 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "lint:type": "tsc --noEmit",
     "commitlint": "commitlint --from=master",
     "security": "npm audit",
-    "test:only": "jest",
+    "test:only": "jest --detectOpenHandles",
     "test:coverage": "npm run test:only -- --coverage",
     "test:watch": "npm run test:coverage --watch",
     "test": "npm run test:coverage",