diff --git a/package.json b/package.json
index eac3156f..9fdb7bf4 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "prerelease": "yarn test && yarn compile",
     "release": "node ./scripts/release/publish.js",
     "postrelease": "yarn website:release && yarn benchmarks:release",
-    "test": "yarn flow && yarn lint:check && yarn jest"
+    "test": "yarn flow && yarn lint:check && yarn jest --runInBand"
   },
   "devDependencies": {
     "babel-cli": "^6.26.0",