diff --git a/backend/package-lock.json b/backend/package-lock.json
index cb288d7..2d8322d 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -14,12 +14,34 @@
         "express": "^4.17.1",
         "googleapis": "^52.1.0",
         "jws": "^4.0.0",
-        "mongoose": "^5.8.11",
+        "mongoose": "^5.13.15",
         "nodemon": "^2.0.2",
         "socket.io": "^2.4.0",
         "username-generator": "^1.1.0"
       }
     },
+    "node_modules/@types/bson": {
+      "version": "4.0.5",
+      "resolved": "https://registry.npmjs.org/@types/bson/-/bson-4.0.5.tgz",
+      "integrity": "sha512-vVLwMUqhYJSQ/WKcE60eFqcyuWse5fGH+NMAXHuKrUAPoryq3ATxk5o4bgYNtg5aOM4APVg7Hnb3ASqUYG0PKg==",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
+    "node_modules/@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==",
+      "dependencies": {
+        "@types/bson": "*",
+        "@types/node": "*"
+      }
+    },
+    "node_modules/@types/node": {
+      "version": "18.11.18",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-18.11.18.tgz",
+      "integrity": "sha512-DHQpWGjyQKSHj3ebjFI/wRKcqQcdR+MoFBygntYOZytCqNfkd2ZC4ARDJ2DQqhjH5p85Nnd3jhUJIXrszFX/JA=="
+    },
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       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
@@ -176,6 +198,15 @@
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+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/bl/-/bl-2.2.1.tgz",
+      "integrity": "sha512-6Pesp1w0DEX1N550i/uGV/TqucVL4AM/pgThFSN/Qq9si1/DF9aIHs1BxD8V/QU0HoeHO6cQRTAuYnLPKq1e4g==",
+      "dependencies": {
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+        "safe-buffer": "^5.1.1"
+      }
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       "resolved": "https://registry.npmjs.org/blob/-/blob-0.0.5.tgz",
@@ -257,9 +288,9 @@
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-      "resolved": "https://registry.npmjs.org/bson/-/bson-1.1.3.tgz",
-      "integrity": "sha512-TdiJxMVnodVS7r0BdL42y/pqC9cL2iKynVwA0Ho3qbsQYr428veL3l7BQyuqiw+Q5SqqoT0m4srSY/BlZ9AxXg==",
+      "version": "1.1.6",
+      "resolved": "https://registry.npmjs.org/bson/-/bson-1.1.6.tgz",
+      "integrity": "sha512-EvVNVeGo4tHxwi8L6bPj3y3itEvStdwvvlojVxxbyYfoaxJ6keLgrTuKdyfEAszFK+H3olzBuafE0yoh0D1gdg==",
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@@ -425,6 +456,11 @@
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       "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
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+    "node_modules/core-util-is": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
+      "integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ=="
+    },
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       "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
@@ -482,6 +518,14 @@
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+    "node_modules/denque": {
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+      "resolved": "https://registry.npmjs.org/denque/-/denque-1.5.1.tgz",
+      "integrity": "sha512-XwE+iZ4D6ZUB7mfYRMb5wByE8L74HCn30FBN7sWnXksWc1LO1bPDl67pBR9o/kC4z/xSNAwkMYcGgqDV3BE3Hw==",
+      "engines": {
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+      }
+    },
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@@ -1266,9 +1310,9 @@
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-      "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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@@ -1383,12 +1427,14 @@
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-      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.4.1.tgz",
-      "integrity": "sha512-juqt5/Z42J4DcE7tG7UdVaTKmUC6zinF4yioPfpeOSNBieWSK6qCY+0tfGQcHLKrauWPDdMZVROHJOa8q2pWsA==",
+      "version": "3.7.3",
+      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.7.3.tgz",
+      "integrity": "sha512-Psm+g3/wHXhjBEktkxXsFMZvd3nemI0r3IPsE0bU+4//PnvNWKkzhZcEsbPcYiWqe8XqXJJEg4Tgtr7Raw67Yw==",
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-        "bson": "^1.1.1",
-        "require_optional": "^1.0.1",
+        "bl": "^2.2.1",
+        "bson": "^1.1.4",
+        "denque": "^1.4.1",
+        "optional-require": "^1.1.8",
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@@ -1396,27 +1442,65 @@
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       "optionalDependencies": {
         "saslprep": "^1.0.0"
+      },
+      "peerDependenciesMeta": {
+        "aws4": {
+          "optional": true
+        },
+        "bson-ext": {
+          "optional": true
+        },
+        "kerberos": {
+          "optional": true
+        },
+        "mongodb-client-encryption": {
+          "optional": true
+        },
+        "mongodb-extjson": {
+          "optional": true
+        },
+        "snappy": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/mongodb/node_modules/optional-require": {
+      "version": "1.1.8",
+      "resolved": "https://registry.npmjs.org/optional-require/-/optional-require-1.1.8.tgz",
+      "integrity": "sha512-jq83qaUb0wNg9Krv1c5OQ+58EK+vHde6aBPzLvPPqJm89UQWsvSuFy9X/OSNJnFeSOKo7btE0n8Nl2+nE+z5nA==",
+      "dependencies": {
+        "require-at": "^1.0.6"
+      },
+      "engines": {
+        "node": ">=4"
       }
     },
     "node_modules/mongoose": {
-      "version": "5.8.11",
-      "resolved": "https://registry.npmjs.org/mongoose/-/mongoose-5.8.11.tgz",
-      "integrity": "sha512-Yz0leNEJsAtNtMTxTDEadacLWt58gaVeBVL3c1Z3vaBoc159aJqlf+T8jaL9mAdBxKndF5YWhh6Q719xac7cjA==",
+      "version": "5.13.15",
+      "resolved": "https://registry.npmjs.org/mongoose/-/mongoose-5.13.15.tgz",
+      "integrity": "sha512-cxp1Gbb8yUWkaEbajdhspSaKzAvsIvOtRlYD87GN/P2QEUhpd6bIvebi36T6M0tIVAMauNaK9SPA055N3PwF8Q==",
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-        "bson": "~1.1.1",
-        "kareem": "2.3.1",
-        "mongodb": "3.4.1",
+        "@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",
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-        "safe-buffer": "5.1.2",
-        "sift": "7.0.1",
+        "safe-buffer": "5.2.1",
+        "sift": "13.5.2",
         "sliced": "1.0.1"
       },
       "engines": {
         "node": ">=4.0.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/mongoose"
       }
     },
     "node_modules/mongoose-legacy-pluralize": {
@@ -1425,22 +1509,36 @@
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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==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ]
     },
     "node_modules/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==",
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-      "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==",
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@@ -1463,7 +1561,7 @@
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       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
-      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+      "integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A=="
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@@ -1572,6 +1670,14 @@
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+    "node_modules/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==",
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/p-finally": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/p-finally/-/p-finally-1.0.0.tgz",
@@ -1654,6 +1760,11 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/process-nextick-args": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
+      "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag=="
+    },
     "node_modules/proxy-addr": {
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       "resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.5.tgz",
@@ -1720,6 +1831,30 @@
         "rc": "cli.js"
       }
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+    "node_modules/readable-stream": {
+      "version": "2.3.7",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
+      "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+      "dependencies": {
+        "core-util-is": "~1.0.0",
+        "inherits": "~2.0.3",
+        "isarray": "~1.0.0",
+        "process-nextick-args": "~2.0.0",
+        "safe-buffer": "~5.1.1",
+        "string_decoder": "~1.1.1",
+        "util-deprecate": "~1.0.1"
+      }
+    },
+    "node_modules/readable-stream/node_modules/isarray": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
+      "integrity": "sha512-VLghIWNM6ELQzo7zwmcg0NmTVyWKYjvIeM83yjp0wRDTmUnrM678fQbcKBo6n2CJEF0szoG//ytg+TKla89ALQ=="
+    },
+    "node_modules/readable-stream/node_modules/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=="
+    },
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       "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.3.0.tgz",
@@ -1756,21 +1891,12 @@
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-      "resolved": "https://registry.npmjs.org/require_optional/-/require_optional-1.0.1.tgz",
-      "integrity": "sha512-qhM/y57enGWHAe3v/NcwML6a3/vfESLe/sGM2dII+gEO0BpKRUkWZow/tyloNqJyN6kXSl3RyyM8Ll5D/sJP8g==",
-      "dependencies": {
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-        "semver": "^5.1.0"
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-    "node_modules/resolve-from": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-2.0.0.tgz",
-      "integrity": "sha1-lICrIOlP+h2egKgEx+oUdhGWa1c=",
+    "node_modules/require-at": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/require-at/-/require-at-1.0.6.tgz",
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-        "node": ">=0.10.0"
+        "node": ">=4"
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@@ -1894,9 +2020,9 @@
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+      "version": "13.5.2",
+      "resolved": "https://registry.npmjs.org/sift/-/sift-13.5.2.tgz",
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@@ -1906,7 +2032,7 @@
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-      "integrity": "sha1-CzpmK10Ewxd7GSa+qCsD+Dei70E="
+      "integrity": "sha512-VZBmZP8WU3sMOZm1bdgTadsQbcscK0UM8oKxKVBs4XAhUo2Xxzm/OFMGBkPusxw9xL3Uy8LrzEqGqJhclsr0yA=="
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@@ -2001,7 +2127,7 @@
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-      "integrity": "sha1-/0rm5oZWBWuks+eSqzM004JzyhE=",
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@@ -2015,6 +2141,19 @@
         "node": ">= 0.6"
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+    "node_modules/string_decoder": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+      "dependencies": {
+        "safe-buffer": "~5.1.0"
+      }
+    },
+    "node_modules/string_decoder/node_modules/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=="
+    },
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       "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
@@ -2220,6 +2359,11 @@
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+    "node_modules/util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
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+    },
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@@ -3578,6 +3778,11 @@
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@@ -3639,6 +3844,11 @@
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       "integrity": "sha1-1PRWKwzjaW5BrFLQ4ALlemNdxtw="
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+    "process-nextick-args": {
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+      "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
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@@ -3690,6 +3900,32 @@
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+        "inherits": "~2.0.3",
+        "isarray": "~1.0.0",
+        "process-nextick-args": "~2.0.0",
+        "safe-buffer": "~5.1.1",
+        "string_decoder": "~1.1.1",
+        "util-deprecate": "~1.0.1"
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+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
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+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
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@@ -3720,19 +3956,10 @@
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-      "integrity": "sha1-lICrIOlP+h2egKgEx+oUdhGWa1c="
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+      "resolved": "https://registry.npmjs.org/require-at/-/require-at-1.0.6.tgz",
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@@ -3838,9 +4065,9 @@
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-      "resolved": "https://registry.npmjs.org/sift/-/sift-7.0.1.tgz",
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+      "version": "13.5.2",
+      "resolved": "https://registry.npmjs.org/sift/-/sift-13.5.2.tgz",
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@@ -3850,7 +4077,7 @@
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-      "integrity": "sha1-CzpmK10Ewxd7GSa+qCsD+Dei70E="
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@@ -3951,7 +4178,7 @@
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-      "integrity": "sha1-/0rm5oZWBWuks+eSqzM004JzyhE=",
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@@ -3962,6 +4189,21 @@
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       "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
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+    "string_decoder": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+      "requires": {
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+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
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@@ -4121,6 +4363,11 @@
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+    "util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
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       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
diff --git a/backend/package.json b/backend/package.json
index 295b238..8ca24c7 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -15,7 +15,7 @@
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     "googleapis": "^52.1.0",
     "jws": "^4.0.0",
-    "mongoose": "^5.8.11",
+    "mongoose": "^5.13.15",
     "nodemon": "^2.0.2",
     "socket.io": "^2.4.0",
     "username-generator": "^1.1.0"