diff --git a/package-lock.json b/package-lock.json
index 1f6d60f..0773d1f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -237,12 +237,12 @@
       }
     },
     "async": {
-      "version": "2.4.1",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.4.1.tgz",
-      "integrity": "sha1-YqVrJ5yYoR0JhwlqAcw+6463u9c=",
+      "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": {