diff --git a/package-lock.json b/package-lock.json
index 2549e99..d259e60 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -77,7 +77,7 @@
         "tailwindcss": "^4",
         "tsx": "^4.21.0",
         "tw-animate-css": "^1.4.0",
-        "typescript": "^5",
+        "typescript": "^6",
         "vitest": "^4.1.8"
       }
     },
@@ -7813,7 +7813,6 @@
       "version": "2.3.2",
       "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.2.tgz",
       "integrity": "sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==",
-      "dev": true,
       "hasInstallScript": true,
       "license": "MIT",
       "optional": true,
@@ -12020,9 +12019,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.9.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
-      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-6.0.3.tgz",
+      "integrity": "sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/package.json b/package.json
index d656a84..b825172 100644
--- a/package.json
+++ b/package.json
@@ -116,7 +116,7 @@
     "tailwindcss": "^4",
     "tsx": "^4.21.0",
     "tw-animate-css": "^1.4.0",
-    "typescript": "^5",
+    "typescript": "^6",
     "vitest": "^4.1.8"
   },
   "description": "Production-grade Next.js 16 + Supabase starter with auth, RLS, i18n (FR/EN), rate limiting, feature flags, Vitest + Playwright, GitHub Actions CI, Docker. Bilingual README.",