diff --git a/package-lock.json b/package-lock.json
index d5e563a..16b5337 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,6 +13,14 @@
         "@types/node": "10.12.18"
       }
     },
+    "@types/bson": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/@types/bson/-/bson-4.0.5.tgz",
+      "integrity": "sha512-vVLwMUqhYJSQ/WKcE60eFqcyuWse5fGH+NMAXHuKrUAPoryq3ATxk5o4bgYNtg5aOM4APVg7Hnb3ASqUYG0PKg==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
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       "version": "3.4.32",
       "resolved": "https://registry.npmjs.org/@types/connect/-/connect-3.4.32.tgz",
@@ -45,6 +53,15 @@
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     },
+    "@types/mongodb": {
+      "version": "3.6.20",
+      "resolved": "https://registry.npmjs.org/@types/mongodb/-/mongodb-3.6.20.tgz",
+      "integrity": "sha512-WcdpPJCakFzcWWD9juKoZbRtQxKIMYF/JIAM4JrNHrMcnJL6/a2NWjXxW7fo9hxboxxkg+icff8d7+WIEvKgYQ==",
+      "requires": {
+        "@types/bson": "*",
+        "@types/node": "*"
+      }
+    },
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       "resolved": "https://registry.npmjs.org/@types/node/-/node-10.12.18.tgz",
@@ -208,6 +225,15 @@
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+      "resolved": "https://registry.npmjs.org/bl/-/bl-2.2.1.tgz",
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+      }
+    },
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       "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.1.tgz",
@@ -1013,6 +1039,11 @@
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+      "resolved": "https://registry.npmjs.org/denque/-/denque-1.5.1.tgz",
+      "integrity": "sha512-XwE+iZ4D6ZUB7mfYRMb5wByE8L74HCn30FBN7sWnXksWc1LO1bPDl67pBR9o/kC4z/xSNAwkMYcGgqDV3BE3Hw=="
+    },
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       "resolved": "https://registry.npmjs.org/depd/-/depd-1.1.2.tgz",
@@ -1623,9 +1654,9 @@
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-      "resolved": "https://registry.npmjs.org/kareem/-/kareem-2.3.1.tgz",
-      "integrity": "sha512-l3hLhffs9zqoDe8zjmb/mAN4B8VT3L56EUvKNqLFVs9YlFA+zx7ke1DO8STAdDyYNkeSo1nKmjuvQeI12So8Xw=="
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/kareem/-/kareem-2.3.2.tgz",
+      "integrity": "sha512-STHz9P7X2L4Kwn72fA4rGyqyXdmrMSdxqHx9IXon/FXluXieaFA6KJ2upcHAHxQPQ0LeM/OjLrhFxifHewOALQ=="
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@@ -1685,6 +1716,12 @@
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       "integrity": "sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g="
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+    "memory-pager": {
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+      "resolved": "https://registry.npmjs.org/memory-pager/-/memory-pager-1.5.0.tgz",
+      "integrity": "sha512-ZS4Bp4r/Zoeq6+NLJpP+0Zzm0pR8whtGPf1XExKLJBAczGMnSi3It14OiNCStjQjM6NU1okjQGSxgEZN8eBYKg==",
+      "optional": true
+    },
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       "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
@@ -1766,30 +1803,46 @@
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-      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.3.2.tgz",
-      "integrity": "sha512-fqJt3iywelk4yKu/lfwQg163Bjpo5zDKhXiohycvon4iQHbrfflSAz9AIlRE6496Pm/dQKQK5bMigdVo2s6gBg==",
-      "requires": {
-        "bson": "^1.1.1",
-        "require_optional": "^1.0.1",
-        "safe-buffer": "^5.1.2"
+      "version": "3.7.3",
+      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.7.3.tgz",
+      "integrity": "sha512-Psm+g3/wHXhjBEktkxXsFMZvd3nemI0r3IPsE0bU+4//PnvNWKkzhZcEsbPcYiWqe8XqXJJEg4Tgtr7Raw67Yw==",
+      "requires": {
+        "bl": "^2.2.1",
+        "bson": "^1.1.4",
+        "denque": "^1.4.1",
+        "optional-require": "^1.1.8",
+        "safe-buffer": "^5.1.2",
+        "saslprep": "^1.0.0"
+      },
+      "dependencies": {
+        "optional-require": {
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+          "resolved": "https://registry.npmjs.org/optional-require/-/optional-require-1.1.8.tgz",
+          "integrity": "sha512-jq83qaUb0wNg9Krv1c5OQ+58EK+vHde6aBPzLvPPqJm89UQWsvSuFy9X/OSNJnFeSOKo7btE0n8Nl2+nE+z5nA==",
+          "requires": {
+            "require-at": "^1.0.6"
+          }
+        }
       }
     },
     "mongoose": {
-      "version": "5.7.5",
-      "resolved": "https://registry.npmjs.org/mongoose/-/mongoose-5.7.5.tgz",
-      "integrity": "sha512-BZ4FxtnbTurc/wcm/hLltLdI4IDxo4nsE0D9q58YymTdZwreNzwO62CcjVtaHhmr8HmJtOInp2W/T12FZaMf8g==",
-      "requires": {
-        "bson": "~1.1.1",
-        "kareem": "2.3.1",
-        "mongodb": "3.3.2",
+      "version": "5.13.15",
+      "resolved": "https://registry.npmjs.org/mongoose/-/mongoose-5.13.15.tgz",
+      "integrity": "sha512-cxp1Gbb8yUWkaEbajdhspSaKzAvsIvOtRlYD87GN/P2QEUhpd6bIvebi36T6M0tIVAMauNaK9SPA055N3PwF8Q==",
+      "requires": {
+        "@types/bson": "1.x || 4.0.x",
+        "@types/mongodb": "^3.5.27",
+        "bson": "^1.1.4",
+        "kareem": "2.3.2",
+        "mongodb": "3.7.3",
         "mongoose-legacy-pluralize": "1.0.2",
-        "mpath": "0.6.0",
-        "mquery": "3.2.2",
+        "mpath": "0.8.4",
+        "mquery": "3.2.5",
         "ms": "2.1.2",
+        "optional-require": "1.0.x",
         "regexp-clone": "1.0.0",
-        "safe-buffer": "5.1.2",
-        "sift": "7.0.1",
+        "safe-buffer": "5.2.1",
+        "sift": "13.5.2",
         "sliced": "1.0.1"
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@@ -1797,6 +1850,11 @@
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+        },
+        "safe-buffer": {
+          "version": "5.2.1",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+          "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
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@@ -1806,14 +1864,14 @@
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     },
     "mpath": {
-      "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/mpath/-/mpath-0.6.0.tgz",
-      "integrity": "sha512-i75qh79MJ5Xo/sbhxrDrPSEG0H/mr1kcZXJ8dH6URU5jD/knFxCVqVC/gVSW7GIXL/9hHWlT9haLbCXWOll3qw=="
+      "version": "0.8.4",
+      "resolved": "https://registry.npmjs.org/mpath/-/mpath-0.8.4.tgz",
+      "integrity": "sha512-DTxNZomBcTWlrMW76jy1wvV37X/cNNxPW1y2Jzd4DZkAaC5ZGsm8bfGfNOthcDuRJujXLqiuS6o3Tpy0JEoh7g=="
     },
     "mquery": {
-      "version": "3.2.2",
-      "resolved": "https://registry.npmjs.org/mquery/-/mquery-3.2.2.tgz",
-      "integrity": "sha512-XB52992COp0KP230I3qloVUbkLUxJIu328HBP2t2EsxSFtf4W1HPSOBWOXf1bqxK4Xbb66lfMJ+Bpfd9/yZE1Q==",
+      "version": "3.2.5",
+      "resolved": "https://registry.npmjs.org/mquery/-/mquery-3.2.5.tgz",
+      "integrity": "sha512-VjOKHHgU84wij7IUoZzFRU07IAxd5kWJaDmyUzQlbjHjyoeK5TNeeo8ZsFDtTYnSgpW6n/nMNIHvE3u8Lbrf4A==",
       "requires": {
         "bluebird": "3.5.1",
         "debug": "3.1.0",
@@ -1974,6 +2032,11 @@
         "ee-first": "1.1.1"
       }
     },
+    "optional-require": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/optional-require/-/optional-require-1.0.3.tgz",
+      "integrity": "sha512-RV2Zp2MY2aeYK5G+B/Sps8lW5NHAzE5QClbFP15j+PWmP+T9PxlJXBOOLoSAdgwFvS4t0aMR4vpedMkbHfh0nA=="
+    },
     "p-finally": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/p-finally/-/p-finally-1.0.0.tgz",
@@ -2166,19 +2229,10 @@
       "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
       "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc="
     },
-    "require_optional": {
-      "version": "1.0.1",
-      "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": "^5.1.0"
-      }
-    },
-    "resolve-from": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-2.0.0.tgz",
-      "integrity": "sha1-lICrIOlP+h2egKgEx+oUdhGWa1c="
+    "require-at": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/require-at/-/require-at-1.0.6.tgz",
+      "integrity": "sha512-7i1auJbMUrXEAZCOQ0VNJgmcT2VOKPRl2YGJwgpHpC9CE91Mv4/4UYIUm4chGJaI381ZDq1JUicFii64Hapd8g=="
     },
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@@ -2208,6 +2262,15 @@
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     },
+    "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": "5.6.0",
       "resolved": "https://registry.npmjs.org/semver/-/semver-5.6.0.tgz",
@@ -2299,9 +2362,9 @@
       "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM="
     },
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-      "version": "7.0.1",
-      "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",
+      "integrity": "sha512-+gxdEOMA2J+AI+fVsCqeNn7Tgx3M9ZN9jdi95939l1IJ8cZsqS8sqpJyOkic2SJk+1+98Uwryt/gL6XDaV+UZA=="
     },
     "signal-exit": {
       "version": "3.0.2",
@@ -2311,7 +2374,7 @@
     "sliced": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/sliced/-/sliced-1.0.1.tgz",
-      "integrity": "sha1-CzpmK10Ewxd7GSa+qCsD+Dei70E="
+      "integrity": "sha512-VZBmZP8WU3sMOZm1bdgTadsQbcscK0UM8oKxKVBs4XAhUo2Xxzm/OFMGBkPusxw9xL3Uy8LrzEqGqJhclsr0yA=="
     },
     "snapdragon": {
       "version": "0.8.2",
@@ -2432,6 +2495,15 @@
       "resolved": "https://registry.npmjs.org/source-map-url/-/source-map-url-0.4.0.tgz",
       "integrity": "sha1-PpNdfd1zYxuXZZlW1VEo6HtQhKM="
     },
+    "sparse-bitfield": {
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/sparse-bitfield/-/sparse-bitfield-3.0.3.tgz",
+      "integrity": "sha512-kvzhi7vqKTfkh0PZU+2D2PIllw2ymqJKujUcyPMd9Y75Nv4nPbGJZXNhxsgdQab2BmlDct1YnfQCguEvHr7VsQ==",
+      "optional": true,
+      "requires": {
+        "memory-pager": "^1.0.2"
+      }
+    },
     "split-string": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/split-string/-/split-string-3.1.0.tgz",
diff --git a/package.json b/package.json
index 69bf245..59a2184 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "@types/express": "^4.16.1",
     "body-parser": "^1.18.3",
     "express": "^4.16.4",
-    "mongoose": "^5.7.5",
+    "mongoose": "^5.13.15",
     "nodemon": "^1.18.9"
   }
 }