diff --git a/package-lock.json b/package-lock.json
index dda03fe..25b50b3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,25 +13,15 @@
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@@ -42,33 +32,35 @@
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-      "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE="
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+    "memory-pager": {
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/memory-pager/-/memory-pager-1.5.0.tgz",
+      "integrity": "sha512-ZS4Bp4r/Zoeq6+NLJpP+0Zzm0pR8whtGPf1XExKLJBAczGMnSi3It14OiNCStjQjM6NU1okjQGSxgEZN8eBYKg==",
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-      "version": "2.2.35",
-      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-2.2.35.tgz",
-      "integrity": "sha512-3HGLucDg/8EeYMin3k+nFWChTA85hcYDCw1lPsWR6yV9A6RgKb24BkLiZ9ySZR+S0nfBjWoIUS7cyV6ceGx5Gg==",
+      "version": "3.1.13",
+      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.1.13.tgz",
+      "integrity": "sha512-sz2dhvBZQWf3LRNDhbd30KHVzdjZx9IKC0L+kSZ/gzYquCF5zPOgGqRz6sSCqYZtKP2ekB4nfLxhGtzGHnIKxA==",
       "requires": {
-        "es6-promise": "3.2.1",
-        "mongodb-core": "2.1.19",
-        "readable-stream": "2.2.7"
+        "mongodb-core": "3.1.11",
+        "safe-buffer": "^5.1.2"
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     "mongodb-core": {
-      "version": "2.1.19",
-      "resolved": "https://registry.npmjs.org/mongodb-core/-/mongodb-core-2.1.19.tgz",
-      "integrity": "sha512-Jt4AtWUkpuW03kRdYGxga4O65O1UHlFfvvInslEfLlGi+zDMxbBe3J2NVmN9qPJ957Mn6Iz0UpMtV80cmxCVxw==",
+      "version": "3.1.11",
+      "resolved": "https://registry.npmjs.org/mongodb-core/-/mongodb-core-3.1.11.tgz",
+      "integrity": "sha512-rD2US2s5qk/ckbiiGFHeu+yKYDXdJ1G87F6CG3YdaZpzdOm5zpoAZd/EKbPmFO6cQZ+XVXBXBJ660sSI0gc6qg==",
       "requires": {
-        "bson": "~1.0.4",
-        "require_optional": "~1.0.0"
+        "bson": "^1.1.0",
+        "require_optional": "^1.0.1",
+        "safe-buffer": "^5.1.2",
+        "saslprep": "^1.0.0"
       }
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@@ -84,11 +76,6 @@
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-    "process-nextick-args": {
-      "version": "1.0.7",
-      "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-1.0.7.tgz",
-      "integrity": "sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M="
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@@ -107,20 +94,6 @@
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-      "version": "2.2.7",
-      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.2.7.tgz",
-      "integrity": "sha1-BwV6y+JGeyIELTb5jFrVBwVOlbE=",
-      "requires": {
-        "buffer-shims": "~1.0.0",
-        "core-util-is": "~1.0.0",
-        "inherits": "~2.0.1",
-        "isarray": "~1.0.0",
-        "process-nextick-args": "~1.0.6",
-        "string_decoder": "~1.0.0",
-        "util-deprecate": "~1.0.1"
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       "resolved": "https://registry.npmjs.org/require_optional/-/require_optional-1.0.1.tgz",
@@ -136,28 +109,38 @@
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     },
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-      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
+    },
+    "saslprep": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/saslprep/-/saslprep-1.0.3.tgz",
+      "integrity": "sha512-/MY/PEMbk2SuY5sScONwhUDsV2p77Znkb/q3nSVstq/yQzYJOH/Azh29p9oJLsl3LnQwSvZDKagDGBsBwSooag==",
+      "optional": true,
+      "requires": {
+        "sparse-bitfield": "^3.0.3"
+      }
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     "semver": {
-      "version": "5.5.0",
-      "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
-      "integrity": "sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA=="
+      "version": "5.7.1",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+      "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
+    },
+    "sparse-bitfield": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz",
+      "integrity": "sha1-/0rm5oZWBWuks+eSqzM004JzyhE=",
+      "optional": true,
+      "requires": {
+        "memory-pager": "^1.0.2"
+      }
     },
     "speedometer": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/speedometer/-/speedometer-0.1.4.tgz",
       "integrity": "sha1-mHbb0qFp0xFUAtSObqYynIgWpQ0="
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-    "string_decoder": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
-      "integrity": "sha512-4AH6Z5fzNNBcH+6XDMfA/BTt87skxqJlO0lAh3Dker5zThcAxG6mKz+iGu308UKoPPQ8Dcqx/4JhujzltRa+hQ==",
-      "requires": {
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       "resolved": "https://registry.npmjs.org/through2/-/through2-0.2.3.tgz",
@@ -190,11 +173,6 @@
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-    "util-deprecate": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
-      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
-    },
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       "resolved": "https://registry.npmjs.org/xtend/-/xtend-2.1.2.tgz",
diff --git a/package.json b/package.json
index e4f3b48..3ad1055 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   "license": "MIT",
   "dependencies": {
     "async": "2.6.1",
-    "mongodb": "^2.2.35",
+    "mongodb": "^3.1.13",
     "read-json-stream": "^1.1.0"
   }
 }