diff --git a/package.json b/package.json
index 2df8729b12..55621bd636 100644
--- a/package.json
+++ b/package.json
@@ -81,11 +81,11 @@
     "prettier": "3.7.4",
     "react": "^19.2.1",
     "react-dom": "^19.2.1",
-    "rolldown": "^1.0.0-beta.58",
-    "rolldown-plugin-dts": "^0.20.0",
+    "rolldown": "^1.0.0-beta.59",
+    "rolldown-plugin-dts": "^0.21.0",
     "typescript": "~5.9.2",
-    "vite": "^8.0.0-beta.5",
-    "vitest": "^4.0.16",
+    "vite": "^8.0.0-beta.7",
+    "vitest": "^4.0.17",
     "vitest-browser-react": "^2.0.2"
   },
   "peerDependencies": {
diff --git a/vite.config.ts b/vite.config.ts
index fe5cffe731..5b68f9c73f 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -113,8 +113,6 @@ export default defineConfig(
             include: ['test/browser/**/*.test.*'],
             browser: {
               ui: false,
-              // TODO: remove when FF tests are stable
-              fileParallelism: false,
               enabled: true,
               provider: playwright({
                 contextOptions: {
@@ -124,7 +122,14 @@ export default defineConfig(
               trace: {
                 mode: isCI ? 'off' : 'retain-on-failure'
               },
-              instances: [{ browser: 'chromium' }, { browser: 'firefox' }],
+              instances: [
+                { browser: 'chromium' },
+                {
+                  browser: 'firefox',
+                  // TODO: remove when FF tests are stable
+                  fileParallelism: false
+                }
+              ],
               commands: { resizeColumn, dragFill, scrollGrid },
               viewport,
               headless: true,