diff --git a/package-lock.json b/package-lock.json
index 44d97da..986bfa8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -57,9 +57,9 @@
       "dev": true
     },
     "async": {
-      "version": "0.9.2",
-      "resolved": "https://registry.npmjs.org/async/-/async-0.9.2.tgz",
-      "integrity": "sha1-rqdNXmHB+JlhO/ZL2mbUx48v0X0=",
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.2.tgz",
+      "integrity": "sha512-H0E+qZaDEfx/FY4t7iLRv1W2fFI6+pyCeTw1uN20AQPiwqwM6ojPxHxdLv4z8hi2DtnW9BOckSspLucW7pIE5g==",
       "dev": true
     },
     "asynckit": {
diff --git a/package.json b/package.json
index 0ea1d4f..239bccf 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "coverage": "node_modules/.bin/istanbul cover node_modules/.bin/_mocha -- --recursive"
   },
   "devDependencies": {
-    "async": "^0.9.0",
+    "async": "^3.2.2",
     "chai": "^1.10.0",
     "coveralls": "^2.11.2",
     "istanbul": "^0.4.5",