diff --git a/package-lock.json b/package-lock.json
index 8e0e0ad..7566074 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -368,9 +368,19 @@
 			}
 		},
 		"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 871119b..fb547ff 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
 	},
 	"dependencies": {
 		"alt": "^0.17.4",
-		"async": "^1.4.2",
+		"async": "^2.6.4",
 		"axios": "^0.15.3",
 		"babel": "^5.8.23",
 		"btoa": "^1.1.2",