diff --git a/package-lock.json b/package-lock.json
index 445fd03b..1d4425f5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -527,11 +527,12 @@
       "integrity": "sha1-WWZ/QfrdTyDMvCu5a41Pf3jsA2c="
     },
     "async": {
-      "version": "2.6.0",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.0.tgz",
-      "integrity": "sha512-xAfGg1/NTLBBKlHFmnd7PlmUW9KhVQIUuSrYem9xzFUZy13ScvtyGGejaae9iAVRiRq9+Cx7DPFaAAhCpyxyPw==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
+      "dev": true,
       "requires": {
-        "lodash": "^4.14.0"
+        "lodash": "^4.17.14"
       }
     },
     "async-each": {
@@ -4750,6 +4751,16 @@
         "async": "2.6.0",
         "google-auth-library": "0.12.0",
         "string-template": "1.0.0"
+      },
+      "dependencies": {
+        "async": {
+          "version": "2.6.0",
+          "resolved": "https://registry.npmjs.org/async/-/async-2.6.0.tgz",
+          "integrity": "sha512-xAfGg1/NTLBBKlHFmnd7PlmUW9KhVQIUuSrYem9xzFUZy13ScvtyGGejaae9iAVRiRq9+Cx7DPFaAAhCpyxyPw==",
+          "requires": {
+            "lodash": "^4.14.0"
+          }
+        }
       }
     },
     "graceful-fs": {
diff --git a/package.json b/package.json
index c94b727c..605cc860 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     ]
   },
   "devDependencies": {
-    "async": "^2.6.0",
+    "async": "^2.6.4",
     "babel-preset-es2015": "*",
     "bower": "^1.8.8",
     "browser-sync": "^2.26.7",