diff --git a/package.json b/package.json
index dc8f714..b049f1d 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
 		"@typescript-eslint/parser": "^8.39.1",
 		"eslint": "^9.33.0",
 		"prettier": "^3.6.2",
-		"typescript": "^5.5.2",
+		"typescript": "^5.9.3",
 		"vitest": "~3.2.0",
 		"wrangler": "4"
 	},
diff --git a/yarn.lock b/yarn.lock
index 04ed196..b056d16 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1900,10 +1900,10 @@ type-check@^0.4.0, type-check@~0.4.0:
   dependencies:
     prelude-ls "^1.2.1"
 
-typescript@^5.5.2:
-  version "5.9.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.9.2.tgz#d93450cddec5154a2d5cabe3b8102b83316fb2a6"
-  integrity sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A==
+typescript@^5.9.3:
+  version "5.9.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.9.3.tgz#5b4f59e15310ab17a216f5d6cf53ee476ede670f"
+  integrity sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==
 
 ufo@^1.6.1:
   version "1.6.1"