diff --git a/javascript/package-lock.json b/javascript/package-lock.json
index f4a99ad..a7a052d 100644
--- a/javascript/package-lock.json
+++ b/javascript/package-lock.json
@@ -36,7 +36,7 @@
         "mocha": "^10.2.0",
         "prettier": "2.8.8",
         "ts-node": "^10.9.1",
-        "typescript": "4.9.5"
+        "typescript": "5.6.3"
       },
       "peerDependencies": {
         "@cucumber/messages": "*"
@@ -4300,9 +4300,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "4.9.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.5.tgz",
-      "integrity": "sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==",
+      "version": "5.6.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.6.3.tgz",
+      "integrity": "sha512-hjcS1mhfuyi4WW8IWtjP7brDrG2cuDZukyrYrSauoXGNgx0S7zceP07adYkJycEr56BOUTNPzbInooiN3fn1qw==",
       "dev": true,
       "license": "Apache-2.0",
       "bin": {
@@ -4310,7 +4310,7 @@
         "tsserver": "bin/tsserver"
       },
       "engines": {
-        "node": ">=4.2.0"
+        "node": ">=14.17"
       }
     },
     "node_modules/unbox-primitive": {
diff --git a/javascript/package.json b/javascript/package.json
index 7926e50..fc5560c 100644
--- a/javascript/package.json
+++ b/javascript/package.json
@@ -52,6 +52,6 @@
     "mocha": "^10.2.0",
     "prettier": "2.8.8",
     "ts-node": "^10.9.1",
-    "typescript": "4.9.5"
+    "typescript": "5.6.3"
   }
 }