diff --git a/package-lock.json b/package-lock.json
index 1a6040a..aaf9719 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -147,9 +147,19 @@
       "integrity": "sha1-8S4PPF13sLHN2RRpQuTpbB5N1SU="
     },
     "async": {
-      "version": "0.1.15",
-      "resolved": "https://registry.npmjs.com/async/-/async-0.1.15.tgz",
-      "integrity": "sha1-IYDqyizypspSgNQcBYW+ybPkm9M="
+      "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=="
+        }
+      }
     },
     "asynckit": {
       "version": "0.4.0",
diff --git a/package.json b/package.json
index 9fc70ed..38b1a3c 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "mongofixtures": "./bin/mongofixtures"
   },
   "dependencies": {
-    "async": "0.1.15",
+    "async": "2.6.4",
     "mongodb": "~2.2.x",
     "nodeunit": "^0.11.3",
     "optimist": "0.3.5",