diff --git a/package-lock.json b/package-lock.json
index 701ebca5..13501a7c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -34,7 +34,7 @@
         "npm-run-all2": "8.0.4",
         "prettier": "3.7.4",
         "release-it": "17.11.0",
-        "typescript": "5.8.2",
+        "typescript": "5.9.3",
         "vite": "7.2.7",
         "vite-plugin-dts": "4.5.4",
         "vitepress": "1.6.4",
@@ -2087,6 +2087,20 @@
         "node": ">=10"
       }
     },
+    "node_modules/@microsoft/api-extractor/node_modules/typescript": {
+      "version": "5.8.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.2.tgz",
+      "integrity": "sha512-aJn6wq13/afZp/jT9QZmwEjDqqvSGp1VT5GVg+f/t6/oVyrgXM6BY1h9BRh/O5p3PlUPAe+WuiEZOmb/49RqoQ==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    },
     "node_modules/@microsoft/tsdoc": {
       "version": "0.16.0",
       "resolved": "https://registry.npmjs.org/@microsoft/tsdoc/-/tsdoc-0.16.0.tgz",
@@ -11117,9 +11131,9 @@
       "license": "MIT"
     },
     "node_modules/typescript": {
-      "version": "5.8.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.2.tgz",
-      "integrity": "sha512-aJn6wq13/afZp/jT9QZmwEjDqqvSGp1VT5GVg+f/t6/oVyrgXM6BY1h9BRh/O5p3PlUPAe+WuiEZOmb/49RqoQ==",
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "devOptional": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/package.json b/package.json
index c1c6e68b..990f5c4c 100644
--- a/package.json
+++ b/package.json
@@ -93,7 +93,7 @@
     "npm-run-all2": "8.0.4",
     "prettier": "3.7.4",
     "release-it": "17.11.0",
-    "typescript": "5.8.2",
+    "typescript": "5.9.3",
     "vite": "7.2.7",
     "vite-plugin-dts": "4.5.4",
     "vitepress": "1.6.4",