diff --git a/package-lock.json b/package-lock.json
index 15e4a80..9a4588d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,7 @@
         "eslint": "^10.9.1",
         "globals": "^17.11.0",
         "prettier": "3.9.6",
-        "typescript": "^5.9.3"
+        "typescript": "^6.0.3"
       },
       "engines": {
         "node": ">=20"
@@ -406,6 +406,7 @@
       "version": "13.0.3",
       "resolved": "https://registry.npmjs.org/better-sqlite3/-/better-sqlite3-13.0.3.tgz",
       "integrity": "sha512-RbOBxmLBG8uvFUc15X9+9SFemKcQ0WBuISBVkpuiaUB2qblC8UWlHEjdWVoZ8AdhSwmoEgsiXKfopX0CQxaACQ==",
+      "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
         "node-addon-api": "^8.0.0"
@@ -2653,9 +2654,9 @@
       }
     },
     "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 538360a..f87d803 100644
--- a/package.json
+++ b/package.json
@@ -29,6 +29,6 @@
     "eslint": "^10.9.1",
     "globals": "^17.11.0",
     "prettier": "3.9.6",
-    "typescript": "^5.9.3"
+    "typescript": "^6.0.3"
   }
 }
diff --git a/tsconfig.json b/tsconfig.json
index e98c2d8..425463e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -12,6 +12,9 @@
     "moduleResolution": "bundler",
     "module": "preserve",
     "skipLibCheck": true,
+    // TS 6 turns strictness on by default; this checkJs gate was written
+    // non-strict on TS 5 — keep that contract explicit rather than implicit.
+    "strict": false,
     "types": ["node"]
   },
   "include": ["server.js", "lib/**/*.js", "public/**/*.js", "scripts/**/*.mjs"],