diff --git a/package.json b/package.json
index ad0d695f5..5646e87f5 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "async": "^1.5.2",
+    "async": "^3.2.2",
     "body-parser": "^1.15.1",
     "cookie-parser": "^1.4.3",
     "express": "^4.13.4",
diff --git a/yarn.lock b/yarn.lock
index e91885c53..2832e9e40 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -57,6 +57,10 @@ async@1.x, async@^1.5.2:
   version "1.5.2"
   resolved "https://registry.yarnpkg.com/async/-/async-1.5.2.tgz#ec6a61ae56480c0c3cb241c95618e20892f9672a"
 
+async@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/async/-/async-3.2.2.tgz#2eb7671034bb2194d45d30e31e24ec7e7f9670cd"
+
 asynckit@^0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"