diff --git a/package-lock.json b/package-lock.json
index 2b3be4e..6bdb3ea 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
       "devDependencies": {
         "@biomejs/biome": "2.4.4",
         "@cloudflare/workers-types": "^4.20231025.0",
-        "typescript": "^5.2.2",
+        "typescript": "^5.9.3",
         "wrangler": "4.67.0"
       }
     },
@@ -1140,10 +1140,11 @@
       "optional": true
     },
     "node_modules/typescript": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.2.2.tgz",
-      "integrity": "sha512-mI4WrpHsbCIcwT9cF4FZvr80QUeKvsUsUvKDoR+X/7XHQH98xYD8YHZg7ANtz2GtZt/CBq2QJ0thkGJMHfqc1w==",
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
+      "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
diff --git a/package.json b/package.json
index 5ef5695..2806988 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "devDependencies": {
     "@biomejs/biome": "2.4.4",
     "@cloudflare/workers-types": "^4.20231025.0",
-    "typescript": "^5.2.2",
+    "typescript": "^5.9.3",
     "wrangler": "4.67.0"
   },
   "private": true,