diff --git a/package-lock.json b/package-lock.json
index b241eb9..0e6aacc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1727,9 +1727,12 @@
       "optional": true
     },
     "async": {
-      "version": "1.5.2",
-      "resolved": "http://registry.npmjs.org/async/-/async-1.5.2.tgz",
-      "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo="
+      "version": "2.6.4",
+      "resolved": "http://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
+      "requires": {
+        "lodash": "^4.17.14"
+      }
     },
     "async-each": {
       "version": "1.0.3",
@@ -2767,6 +2770,14 @@
         "mkdirp": "^0.5.1",
         "rimraf": "^2.5.2",
         "underscore-plus": "1.x"
+      },
+      "dependencies": {
+        "async": {
+          "version": "1.5.2",
+          "resolved": "http://registry.npmjs.org/async/-/async-1.5.2.tgz",
+          "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=",
+          "dev": true
+        }
       }
     },
     "fs-readdir-recursive": {
@@ -3328,8 +3339,7 @@
     "lodash": {
       "version": "4.17.20",
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
-      "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==",
-      "dev": true
+      "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA=="
     },
     "loose-envify": {
       "version": "1.4.0",
@@ -3426,7 +3436,7 @@
     },
     "minimist": {
       "version": "0.0.8",
-      "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
       "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
     },
     "mixin-deep": {
@@ -4341,7 +4351,7 @@
     },
     "source-map": {
       "version": "0.1.43",
-      "resolved": "http://registry.npmjs.org/source-map/-/source-map-0.1.43.tgz",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.43.tgz",
       "integrity": "sha1-wkvBRspRfBRx9drL4lcbK3+eM0Y=",
       "dev": true,
       "requires": {
@@ -4510,7 +4520,7 @@
       "dependencies": {
         "rimraf": {
           "version": "2.2.8",
-          "resolved": "http://registry.npmjs.org/rimraf/-/rimraf-2.2.8.tgz",
+          "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.2.8.tgz",
           "integrity": "sha1-5Dm+Kq7jJzIZUnMPmaiSnk/FBYI=",
           "dev": true
         }
diff --git a/package.json b/package.json
index c1a402d..4a712c4 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "cross-env": "^7.0.2"
   },
   "dependencies": {
-    "async": "^1.5.2",
+    "async": "^2.6.4",
     "mkdirp": "^0.5.1",
     "rimraf": "^2.5.2",
     "underscore-plus": "1.x"