diff --git a/package-lock.json b/package-lock.json
index e4c68c6..a761903 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -273,9 +273,19 @@
       }
     },
     "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"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.21",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+          "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+        }
+      }
     },
     "async-each": {
       "version": "1.0.1",
diff --git a/package.json b/package.json
index 917d85d..e4d111d 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,7 @@
   "private": "true",
   "dependencies": {
     "angular-particle": "^1.0.4",
-    "async": "^1.4.2",
+    "async": "^2.6.4",
     "bcrypt-nodejs": "0.0.3",
     "body-parser": "^1.8.4",
     "bower": "^1.8.8",