diff --git a/src/microsoft-trydotnet/package-lock.json b/src/microsoft-trydotnet/package-lock.json
index 99671fec6..2bd59c9b9 100644
--- a/src/microsoft-trydotnet/package-lock.json
+++ b/src/microsoft-trydotnet/package-lock.json
@@ -37,7 +37,7 @@
         "source-map-support": "0.5.21",
         "ts-mocha": "11.1.0",
         "ts-node": "10.9.2",
-        "typescript": "^5.8.3",
+        "typescript": "^5.9.3",
         "uglify-js": "3.19.3"
       },
       "engines": {
@@ -3341,10 +3341,11 @@
       }
     },
     "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": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
diff --git a/src/microsoft-trydotnet/package.json b/src/microsoft-trydotnet/package.json
index 2c3d3383f..c0d22790a 100644
--- a/src/microsoft-trydotnet/package.json
+++ b/src/microsoft-trydotnet/package.json
@@ -35,7 +35,7 @@
     "source-map-support": "0.5.21",
     "ts-mocha": "11.1.0",
     "ts-node": "10.9.2",
-    "typescript": "^5.8.3",
+    "typescript": "^5.9.3",
     "uglify-js": "3.19.3"
   },
   "scripts": {