diff --git a/javascript/package-lock.json b/javascript/package-lock.json
index 8ea0f1c..c30965c 100644
--- a/javascript/package-lock.json
+++ b/javascript/package-lock.json
@@ -26,7 +26,7 @@
         "globby": "^16.0.0",
         "mocha": "^11.0.0",
         "ts-node": "^10.9.1",
-        "typescript": "5.9.3"
+        "typescript": "6.0.3"
       },
       "peerDependencies": {
         "@cucumber/messages": "*"
@@ -1742,9 +1742,9 @@
       }
     },
     "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==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
diff --git a/javascript/package.json b/javascript/package.json
index c6d1102..f796a14 100644
--- a/javascript/package.json
+++ b/javascript/package.json
@@ -43,6 +43,6 @@
     "globby": "^16.0.0",
     "mocha": "^11.0.0",
     "ts-node": "^10.9.1",
-    "typescript": "5.9.3"
+    "typescript": "6.0.3"
   }
 }