diff --git a/package-lock.json b/package-lock.json
index 78b79aa..b7cd120 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -250,9 +250,12 @@
       "dev": true
     },
     "async": {
-      "version": "0.2.10",
-      "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
-      "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E="
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
+      "requires": {
+        "lodash": "^4.17.14"
+      }
     },
     "async-hook-domain": {
       "version": "1.1.3",
diff --git a/package.json b/package.json
index 94eaca7..cac4cf7 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "font"
   ],
   "dependencies": {
-    "async": "~0.2.9",
+    "async": "~2.6.4",
     "grunt": "~1.0.1",
     "mkdirp": "~0.3.5",
     "needle": "~0.11.0",