diff --git a/web-test-runner.config.mjs b/web-test-runner.config.mjs
index 93ee6a8..69164da 100644
--- a/web-test-runner.config.mjs
+++ b/web-test-runner.config.mjs
@@ -1 +1,6 @@
-export { default } from '@neovici/cfg/web/test-runner.mjs';
+import config from '@neovici/cfg/web/test-runner.mjs';
+
+export default {
+	...config,
+	concurrency: 1,
+};