diff --git a/package-lock.json b/package-lock.json
index dda03fe..535a29a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5,11 +5,11 @@
   "requires": true,
   "dependencies": {
     "async": {
-      "version": "2.6.1",
-      "resolved": "https://registry.npmjs.org/async/-/async-2.6.1.tgz",
-      "integrity": "sha512-fNEiL2+AZt6AlAw/29Cr0UDe4sRAHCpEHh54WMz+Bb7QfNcFw4h3loofyJpLeQs4Yx7yuqu/2dLgM5hKOs6HlQ==",
+      "version": "2.6.4",
+      "resolved": "https://registry.npmjs.org/async/-/async-2.6.4.tgz",
+      "integrity": "sha512-mzo5dfJYwAn29PeiJ0zvwTo04zj8HDJj0Mn8TD7sno7q12prdbnasKJHhkm2c1LgrhlJ0teaea8860oxi51mGA==",
       "requires": {
-        "lodash": "^4.17.10"
+        "lodash": "^4.17.14"
       }
     },
     "bson": {
@@ -48,9 +48,9 @@
       "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE="
     },
     "lodash": {
-      "version": "4.17.15",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
-      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "mongodb": {
       "version": "2.2.35",
diff --git a/package.json b/package.json
index e4f3b48..c175c98 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
   "author": "",
   "license": "MIT",
   "dependencies": {
-    "async": "2.6.1",
+    "async": "2.6.4",
     "mongodb": "^2.2.35",
     "read-json-stream": "^1.1.0"
   }