diff --git a/package-lock.json b/package-lock.json
index 84f6f60..9222cd4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,6 +13,25 @@
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@@ -570,6 +602,11 @@
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@@ -1057,6 +1094,11 @@
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+      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-4.1.1.tgz",
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+        "bson": "^4.5.1",
+        "denque": "^1.5.0",
+        "mongodb-connection-string-url": "^2.0.0",
+        "saslprep": "^1.0.0"
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-        "mquery": "3.2.2",
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@@ -1455,26 +1511,34 @@
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+      "version": "0.8.4",
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+      "resolved": "https://registry.npmjs.org/mquery/-/mquery-4.0.0.tgz",
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-        "bluebird": "3.5.1",
-        "debug": "3.1.0",
+        "debug": "4.x",
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-        "safe-buffer": "5.1.2",
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+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
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+        }
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@@ -3946,6 +4010,11 @@
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+      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
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+    },
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@@ -4019,22 +4088,6 @@
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@@ -4125,10 +4178,20 @@
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       "dev": true
     },
+    "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"
+      }
+    },
     "semver": {
       "version": "5.5.0",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.5.0.tgz",
-      "integrity": "sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA=="
+      "integrity": "sha512-4SJ3dm0WAwWy/NVeioZh5AntkdJoWKxHxcmyP622fOkgHa4z3R0TdBJICINyaSDE6uNwVc8gZr+ZinwZAH4xIA==",
+      "dev": true
     },
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@@ -4197,9 +4260,9 @@
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-      "resolved": "https://registry.npmjs.org/sift/-/sift-7.0.1.tgz",
-      "integrity": "sha512-oqD7PMJ+uO6jV9EQCl0LrRw1OwsiPsiFQR5AR30heR+4Dl7jBBbDLnNvWiak20tzZlSE1H7RB30SX/1j/YYT7g=="
+      "version": "13.5.2",
+      "resolved": "https://registry.npmjs.org/sift/-/sift-13.5.2.tgz",
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     },
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       "version": "3.0.2",
@@ -4252,6 +4315,15 @@
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       }
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+      "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"
+      }
+    },
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@@ -4383,6 +4455,14 @@
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+    "tr46": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-2.1.0.tgz",
+      "integrity": "sha512-15Ih7phfcdP5YxqiB+iDtLoaTz4Nd35+IiAv0kQ5FNKHzXgdWqPoTIqEDDJmXceQt4JZk6lVPT8lnDlPpGDppw==",
+      "requires": {
+        "punycode": "^2.1.1"
+      }
+    },
     "type-check": {
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       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
@@ -4462,6 +4542,20 @@
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       "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
     },
+    "webidl-conversions": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-6.1.0.tgz",
+      "integrity": "sha512-qBIvFLGiBpLjfwmYAaHPXsn+ho5xZnGvyGvsarywGNc8VyQJUMHJ8OBKGGrPER0okBeMDaan4mNBlgBROxuI8w=="
+    },
+    "whatwg-url": {
+      "version": "9.1.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-9.1.0.tgz",
+      "integrity": "sha512-CQ0UcrPHyomtlOCot1TL77WyMIm/bCwrJ2D6AOKGwEczU9EpyoqAokfqrf/MioU9kHcMsmJZcg1egXix2KYEsA==",
+      "requires": {
+        "tr46": "^2.1.0",
+        "webidl-conversions": "^6.1.0"
+      }
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     "which": {
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diff --git a/package.json b/package.json
index 338af29..49be8e1 100644
--- a/package.json
+++ b/package.json
@@ -22,6 +22,6 @@
   },
   "dependencies": {
     "express": "^4.16.4",
-    "mongoose": "^5.7.5"
+    "mongoose": "^6.0.4"
   }
 }