diff --git a/packages/backend/jest.config.cjs b/packages/backend/jest.config.cjs
index d5565c8412..1552fa3620 100644
--- a/packages/backend/jest.config.cjs
+++ b/packages/backend/jest.config.cjs
@@ -216,5 +216,5 @@ module.exports = {
 	logHeapUsage: true, // To debug when out-of-memory happens on CI
 	workerIdleMemoryLimit: '1GiB', // Limit the worker to 1GB (GitHub Workflows dies at 2GB)
 
-	maxConcurrency: 16,
+	maxConcurrency: 8,
 };