diff --git a/package-lock.json b/package-lock.json
index 14a8c88..9d8bb89 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -116,9 +116,12 @@
       "dev": true
     },
     "async": {
-      "version": "1.5.2",
-      "resolved": "https://registry.npmjs.org/async/-/async-1.5.2.tgz",
-      "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
+      "requires": {
+        "lodash": "^4.17.14"
+      }
     },
     "asynckit": {
       "version": "0.4.0",
diff --git a/package.json b/package.json
index a0797fc..e209504 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   "author": "Mark Headd <mheadd@gmail.com> (http://civic.io/)",
   "license": "ISC",
   "dependencies": {
-    "async": "^1.5.2",
+    "async": "^2.6.4",
     "body-parser": "^1.15.0",
     "cheerio": "^1.0.0-rc.3",
     "express": "^4.13.4",