diff --git a/package-lock.json b/package-lock.json
index ec28deb..e76efec 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30,7 +30,7 @@
         "tslib": "^2.8.1",
         "typedoc": "~0.28.12",
         "typedoc-plugin-markdown": "~4.8.1",
-        "typescript": "~5.8.3",
+        "typescript": "~5.9.3",
         "typescript-eslint": "^8.38.0"
       },
       "funding": {
@@ -5376,9 +5376,9 @@
       }
     },
     "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": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/package.json b/package.json
index 02e53b6..dfc0c60 100644
--- a/package.json
+++ b/package.json
@@ -82,7 +82,7 @@
     "tslib": "^2.8.1",
     "typedoc": "~0.28.12",
     "typedoc-plugin-markdown": "~4.8.1",
-    "typescript": "~5.8.3",
+    "typescript": "~5.9.3",
     "typescript-eslint": "^8.38.0"
   },
   "ava": {