diff --git a/packages/jaeger-ui/package.json b/packages/jaeger-ui/package.json
index 8d59766511..2f4690202e 100644
--- a/packages/jaeger-ui/package.json
+++ b/packages/jaeger-ui/package.json
@@ -104,7 +104,7 @@
     "coverage": "yarn run test-ci --coverage",
     "start:ga-debug": "REACT_APP_GA_DEBUG=1 REACT_APP_VSN_STATE=$(../../scripts/get-tracking-version.js) vite",
     "start": "vite",
-    "test": "jest",
+    "test": "jest --maxWorkers=50%",
     "test-ci": "CI=1 jest --silent --color --maxWorkers=4"
   },
   "jest": {