diff --git a/package-lock.json b/package-lock.json
index 13d7c0c..0e96693 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -236,9 +236,10 @@
       }
     },
     "async": {
-      "version": "0.2.10",
-      "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
-      "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E="
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/async/-/async-3.2.2.tgz",
+      "integrity": "sha512-H0E+qZaDEfx/FY4t7iLRv1W2fFI6+pyCeTw1uN20AQPiwqwM6ojPxHxdLv4z8hi2DtnW9BOckSspLucW7pIE5g==",
+      "dev": true
     },
     "asynckit": {
       "version": "0.4.0",
@@ -2244,6 +2245,11 @@
         "through": "2.3.4"
       },
       "dependencies": {
+        "async": {
+          "version": "0.2.10",
+          "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
+          "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E="
+        },
         "lodash": {
           "version": "2.4.2",
           "resolved": "https://registry.npmjs.org/lodash/-/lodash-2.4.2.tgz",
@@ -4632,6 +4638,13 @@
             "source-map": "0.1.34",
             "uglify-to-browserify": "1.0.2",
             "yargs": "3.5.4"
+          },
+          "dependencies": {
+            "async": {
+              "version": "0.2.10",
+              "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
+              "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E="
+            }
           }
         }
       }
@@ -4984,6 +4997,11 @@
         "underscore.string": "2.3.3"
       },
       "dependencies": {
+        "async": {
+          "version": "0.2.10",
+          "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
+          "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E="
+        },
         "glob": {
           "version": "3.2.11",
           "resolved": "https://registry.npmjs.org/glob/-/glob-3.2.11.tgz",
diff --git a/package.json b/package.json
index ec1b01a..c2c7c89 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "yeoman-generator": "^0.16.0"
   },
   "devDependencies": {
-    "async": "~0.2.9",
+    "async": "~3.2.2",
     "csslint": "^0.10.0",
     "grunt": "~0.4.1",
     "grunt-contrib-jshint": "~0.8.0",