diff --git a/package-lock.json b/package-lock.json
index d33050f6..904f29d1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -37,7 +37,7 @@
         "mocha": "^11.7.4",
         "prettier": "^3.2.5",
         "ts-loader": "^9.5.1",
-        "typescript": "^5.7.3",
+        "typescript": "^5.9.3",
         "vscode-extension-tester": "^8.3.0",
         "vscode-tmgrammar-test": "^0.1.3",
         "webpack": "^5.94.0",
@@ -9063,9 +9063,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.7.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.7.3.tgz",
-      "integrity": "sha512-84MVSjMEHP+FQRPy3pX9sTVV/INIex71s9TL2Gm5FG/WG1SqXeKyZ0k7/blY/4FdOzI12CBy1vGc4og/eus0fw==",
+      "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",
       "peer": true,
diff --git a/package.json b/package.json
index 89719660..1fd1663f 100644
--- a/package.json
+++ b/package.json
@@ -770,7 +770,7 @@
     "mocha": "^11.7.4",
     "prettier": "^3.2.5",
     "ts-loader": "^9.5.1",
-    "typescript": "^5.7.3",
+    "typescript": "^5.9.3",
     "vscode-extension-tester": "^8.3.0",
     "vscode-tmgrammar-test": "^0.1.3",
     "webpack": "^5.94.0",