diff --git a/package.json b/package.json
index 83fb908..497d237 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "eslint-plugin-import": "2.29.1",
     "mocha": "11.7.5",
     "ts-node": "10.9.2",
-    "typescript": "3.8.3"
+    "typescript": "5.9.3"
   },
   "mocha": {
     "require": "ts-node/register",
diff --git a/yarn.lock b/yarn.lock
index b943333..5c8861b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5068,10 +5068,10 @@ typed-array-length@^1.0.5:
     is-typed-array "^1.1.13"
     possible-typed-array-names "^1.0.0"
 
-typescript@3.8.3:
-  version "3.8.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.3.tgz#409eb8544ea0335711205869ec458ab109ee1061"
-  integrity sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w==
+typescript@5.9.3:
+  version "5.9.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.9.3.tgz#5b4f59e15310ab17a216f5d6cf53ee476ede670f"
+  integrity sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==
 
 unbox-primitive@^1.0.2:
   version "1.0.2"