diff --git a/package-lock.json b/package-lock.json
index dbfa27d..c0959d9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,9 +5,9 @@
   "requires": true,
   "dependencies": {
     "async": {
-      "version": "2.6.3",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
-      "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
       "dev": true,
       "requires": {
         "lodash": "^4.17.14"
@@ -72,6 +72,11 @@
       "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==",
       "dev": true
     },
+    "extend": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
+      "integrity": "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g=="
+    },
     "follow-redirects": {
       "version": "1.13.2",
       "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.13.2.tgz",
@@ -145,6 +150,14 @@
       "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==",
       "dev": true
     },
+    "mdn-browser-compat-data": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/mdn-browser-compat-data/-/mdn-browser-compat-data-1.1.2.tgz",
+      "integrity": "sha512-uBNX2P4iu3PZcXP20rL+n7fxN9PWZLj0y43QMe/1aXzqP3H6HbVOeePS0cBZCtMwcfr2Tugf1OHj+/wLam+dUg==",
+      "requires": {
+        "extend": "3.0.2"
+      }
+    },
     "mime": {
       "version": "2.5.0",
       "resolved": "https://registry.npmjs.org/mime/-/mime-2.5.0.tgz",