diff --git a/package-lock.json b/package-lock.json
index a978d0d..afdb1e8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -83,6 +83,7 @@
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       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
+      "optional": true,
       "requires": {
         "kind-of": "3.2.2",
         "longest": "1.0.1",
@@ -341,9 +342,9 @@
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-      "resolved": "https://registry.npmjs.org/bson/-/bson-1.0.5.tgz",
-      "integrity": "sha512-D4SCtud6mlEb48kXdTHU31DRU0bsgOJ+4St1Dcx30uYNnf/aGc+hC9gHB/z0Eth8HYYs/hr0SFdyZViht19SwA=="
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/bson/-/bson-1.1.1.tgz",
+      "integrity": "sha512-jCGVYLoYMHDkOsbwJZBCqwMHyH4c+wzgI9hG7Z6SZJRXWr+x58pdIbm2i9a/jFGCkRJqRUr8eoI7lDWa0hTkxg=="
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@@ -393,6 +394,33 @@
         "mongo-uri-builder": "1.0.3",
         "mongodb": "3.0.3",
         "mqtt-emitter": "1.2.4"
+      },
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+          "version": "1.0.9",
+          "resolved": "https://registry.npmjs.org/bson/-/bson-1.0.9.tgz",
+          "integrity": "sha512-IQX9/h7WdMBIW/q/++tGd+emQr0XMdeZ6icnT/74Xk9fnabWn+gZgpE+9V+gujL3hhJOoNrnDVY7tWdzc7NUTg==",
+          "dev": true
+        },
+        "mongodb": {
+          "version": "3.0.3",
+          "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.0.3.tgz",
+          "integrity": "sha512-BuYbPwjrIS/Ik/AUegjnYb8ncOa4dj8tzP4eSCsaqjP9yjmIWzzKrAXBY+s8xy6xkTJxgvbuTFub6cIwpmHRXQ==",
+          "dev": true,
+          "requires": {
+            "mongodb-core": "3.0.3"
+          }
+        },
+        "mongodb-core": {
+          "version": "3.0.3",
+          "resolved": "https://registry.npmjs.org/mongodb-core/-/mongodb-core-3.0.3.tgz",
+          "integrity": "sha512-AkEiYeq4PZrgoKPZ32q2nL2xFe9iswOgefMipS2YHJHX8DCFAXmYr1aFxefAWisinxI/nd57nBMSe4mrm3yV1g==",
+          "dev": true,
+          "requires": {
+            "bson": "~1.0.4",
+            "require_optional": "^1.0.1"
+          }
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@@ -1785,7 +1813,8 @@
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-      "dev": true
+      "dev": true,
+      "optional": true
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@@ -2014,6 +2043,7 @@
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       "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
       "dev": true,
+      "optional": true,
       "requires": {
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       }
@@ -2088,7 +2118,8 @@
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       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "loose-envify": {
       "version": "1.3.1",
@@ -2124,6 +2155,12 @@
         "mimic-fn": "1.1.0"
       }
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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==",
+      "optional": true
+    },
     "merge-descriptors": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
@@ -2243,20 +2280,37 @@
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-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.0.3.tgz",
-      "integrity": "sha512-BuYbPwjrIS/Ik/AUegjnYb8ncOa4dj8tzP4eSCsaqjP9yjmIWzzKrAXBY+s8xy6xkTJxgvbuTFub6cIwpmHRXQ==",
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.2.3.tgz",
+      "integrity": "sha512-jw8UyPsq4QleZ9z+t/pIVy3L++51vKdaJ2Q/XXeYxk/3cnKioAH8H6f5tkkDivrQL4PUgUOHe9uZzkpRFH1XtQ==",
       "requires": {
-        "mongodb-core": "3.0.3"
+        "mongodb-core": "^3.2.3",
+        "safe-buffer": "^5.1.2"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+        }
       }
     },
     "mongodb-core": {
-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/mongodb-core/-/mongodb-core-3.0.3.tgz",
-      "integrity": "sha512-AkEiYeq4PZrgoKPZ32q2nL2xFe9iswOgefMipS2YHJHX8DCFAXmYr1aFxefAWisinxI/nd57nBMSe4mrm3yV1g==",
-      "requires": {
-        "bson": "1.0.5",
-        "require_optional": "1.0.1"
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/mongodb-core/-/mongodb-core-3.2.3.tgz",
+      "integrity": "sha512-UyI0rmvPPkjOJV8XGWa9VCTq7R4hBVipimhnAXeSXnuAPjuTqbyfA5Ec9RcYJ1Hhu+ISnc8bJ1KfGZd4ZkYARQ==",
+      "requires": {
+        "bson": "^1.1.1",
+        "require_optional": "^1.0.1",
+        "safe-buffer": "^5.1.2",
+        "saslprep": "^1.0.0"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+        }
       }
     },
     "mqtt-emitter": {
@@ -2712,7 +2766,8 @@
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       "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
       "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
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@@ -2798,8 +2853,8 @@
       "resolved": "https://registry.npmjs.org/require_optional/-/require_optional-1.0.1.tgz",
       "integrity": "sha512-qhM/y57enGWHAe3v/NcwML6a3/vfESLe/sGM2dII+gEO0BpKRUkWZow/tyloNqJyN6kXSl3RyyM8Ll5D/sJP8g==",
       "requires": {
-        "resolve-from": "2.0.0",
-        "semver": "5.5.0"
+        "resolve-from": "^2.0.0",
+        "semver": "^5.1.0"
       }
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@@ -2878,6 +2933,15 @@
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       "dev": true
     },
+    "saslprep": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/saslprep/-/saslprep-1.0.2.tgz",
+      "integrity": "sha512-4cDsYuAjXssUSjxHKRe4DTZC0agDwsCqcMqtJAQPzC74nJ7LfAJflAtC1Zed5hMzEQKj82d3tuzqdGNRsLJ4Gw==",
+      "optional": true,
+      "requires": {
+        "sparse-bitfield": "^3.0.3"
+      }
+    },
     "semver": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
@@ -3002,6 +3066,15 @@
         "amdefine": "1.0.1"
       }
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+    "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"
+      }
+    },
     "spdx-correct": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-1.0.2.tgz",