diff --git a/package.json b/package.json
index dec5ad8..1674a57 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
         "@hotwired/stimulus": "^3.0.0",
         "@spomky-labs/pwa-bundle": "file:vendor/spomky-labs/pwa-bundle/assets",
         "@tailwindcss/postcss": "^4.1.18",
+        "@vitest/coverage-istanbul": "^4.1.2",
         "@vitest/coverage-v8": "^4.1.0",
         "eslint": "9",
         "idb": "^8.0.3",
diff --git a/vitest.config.js b/vitest.config.js
index 4f2adcc..770f863 100644
--- a/vitest.config.js
+++ b/vitest.config.js
@@ -5,7 +5,7 @@ export default defineConfig({
         environment: 'happy-dom',
         include: ['tests/js/**/*.test.js'],
         coverage: {
-            provider: 'v8',
+            provider: 'istanbul',
             include: ['assets/**/*.js'],
             exclude: ['assets/modules/event-map.js', 'assets/modules/billet-designer.js', 'assets/modules/stripe-payment.js'],
             reporter: ['text', 'lcov'],