diff --git a/package-lock.json b/package-lock.json
index 68156ab..daceed4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,7 @@
         "@types/node": "^22.16.0",
         "@vercel/ncc": "^0.38.3",
         "linefix": "^0.1.1",
-        "typescript": "5.8.3"
+        "typescript": "5.9.2"
       },
       "funding": {
         "url": "https://github.com/sponsors/Swatinem"
@@ -1596,9 +1596,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.8.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
-      "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
+      "version": "5.9.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.2.tgz",
+      "integrity": "sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/package.json b/package.json
index f3117b6..b8e1e0b 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "@types/node": "^22.16.0",
     "@vercel/ncc": "^0.38.3",
     "linefix": "^0.1.1",
-    "typescript": "5.8.3"
+    "typescript": "5.9.2"
   },
   "scripts": {
     "prepare": "ncc build --target es2020 -o dist/restore src/restore.ts && ncc build --target es2020 -o dist/save src/save.ts && linefix dist"