diff --git a/package.json b/package.json
index c8ec001d..49d70606 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,7 @@
     "@types/ws": "^7.2.4",
     "@typescript-eslint/eslint-plugin": "^4.4.0",
     "@typescript-eslint/parser": "^4.4.0",
-    "@web/test-runner": "^0.9.2",
+    "@web/test-runner": "^0.12.15",
     "commonmark": "^0.28.1",
     "cross-env": "^7.0.2",
     "eslint": "^7.10.0",
diff --git a/web-test-runner.config.js b/web-test-runner.config.js
index 8cf8ad53..39a9b016 100644
--- a/web-test-runner.config.js
+++ b/web-test-runner.config.js
@@ -17,6 +17,7 @@ const { chromeLauncher } = require('@web/test-runner-chrome');
 
 module.exports = {
   files: ['test-browser/**/*.spec.js'],
+  browserStartTimeout: 60 * 1000,
   browsers: [
     chromeLauncher({
       async createPage({ browser }) {