diff --git a/package-lock.json b/package-lock.json
index 78cb2c6..62ec1b2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.1.0",
       "license": "Apache-2.0",
       "dependencies": {
-        "typescript": "^5.4.0"
+        "typescript": "^6.0.3"
       },
       "bin": {
         "stepdown-ts": "bin/cli.mjs"
@@ -32,9 +32,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.9.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
-      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
+      "version": "6.0.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-6.0.3.tgz",
+      "integrity": "sha512-y2TvuxSZPDyQakkFRPZHKFm+KKVqIisdg9/CZwm9ftvKXLP8NRWj38/ODjNbr43SsoXqNuAisEf1GdCxqWcdBw==",
       "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
diff --git a/package.json b/package.json
index 148cdeb..b2e6144 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "release:check": "npm run ci && npm run pack:check"
   },
   "dependencies": {
-    "typescript": "^5.4.0"
+    "typescript": "^6.0.3"
   },
   "devDependencies": {
     "@types/node": "^25.9.2"