diff --git a/samples/client/petstore/typescript-aurelia/default/package.json b/samples/client/petstore/typescript-aurelia/default/package.json
index 0204e3c39c9..ba28c6f9e15 100644
--- a/samples/client/petstore/typescript-aurelia/default/package.json
+++ b/samples/client/petstore/typescript-aurelia/default/package.json
@@ -14,7 +14,7 @@
     "test": "tslint api.ts"
   },
   "devDependencies": {
-    "tslint": "^3.15.1",
+    "tslint": "^5.20.0",
     "typescript": "^1.8.10",
     "typings": "^1.0.4"
   }