diff --git a/package-lock.json b/package-lock.json
index a308797..c88ce0e 100644
--- a/package-lock.json
+++ b/package-lock.json
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-        "deref": "~0.6.3",
-        "faker": "~3.1.0",
-        "randexp": "~0.4.2"
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     },
diff --git a/package.json b/package.json
index 3d32ff6..33cb4aa 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "url": "https://github.com/theganyo/swagger-node-runner.git"
   },
   "dependencies": {
-    "async": "^1.5.0",
+    "async": "^2.6.4",
     "bagpipes": "^0.1.0",
     "body-parser": "^1.14.1",
     "config": "^1.16.0",