diff --git a/package-lock.json b/package-lock.json
index 3cb6bc3..465a5a7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -113,7 +113,8 @@
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       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/@google-cloud/promisify/-/promisify-0.4.0.tgz",
-      "integrity": "sha512-4yAHDC52TEMCNcMzVC8WlqnKKKq+Ssi2lXoUg9zWWkZ6U6tq9ZBRYLHHCRdfU+EU9YJsVmivwGcKYCjRGjnf4Q=="
+      "integrity": "sha512-4yAHDC52TEMCNcMzVC8WlqnKKKq+Ssi2lXoUg9zWWkZ6U6tq9ZBRYLHHCRdfU+EU9YJsVmivwGcKYCjRGjnf4Q==",
+      "optional": true
     },
     "@google-cloud/storage": {
       "version": "2.5.0",
@@ -174,27 +175,32 @@
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       "resolved": "https://registry.npmjs.org/@protobufjs/aspromise/-/aspromise-1.1.2.tgz",
-      "integrity": "sha1-m4sMxmPWaafY9vXQiToU00jzD78="
+      "integrity": "sha1-m4sMxmPWaafY9vXQiToU00jzD78=",
+      "optional": true
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       "resolved": "https://registry.npmjs.org/@protobufjs/base64/-/base64-1.1.2.tgz",
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+      "integrity": "sha512-AZkcAA5vnN/v4PDqKyMR5lx7hZttPDgClv83E//FMNhR2TMcLUhfRUBHCmSl0oi9zMgDDqRUJkSxO3wm85+XLg==",
+      "optional": true
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       "resolved": "https://registry.npmjs.org/@protobufjs/codegen/-/codegen-2.0.4.tgz",
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+      "integrity": "sha512-YyFaikqM5sH0ziFZCN3xDC7zeGaB/d0IUb9CATugHWbd1FRFwWwt4ld4OYMPWu5a3Xe01mGAULCdqhMlPl29Jg==",
+      "optional": true
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       "resolved": "https://registry.npmjs.org/@protobufjs/eventemitter/-/eventemitter-1.1.0.tgz",
-      "integrity": "sha1-NVy8mLr61ZePntCV85diHx0Ga3A="
+      "integrity": "sha1-NVy8mLr61ZePntCV85diHx0Ga3A=",
+      "optional": true
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       "resolved": "https://registry.npmjs.org/@protobufjs/fetch/-/fetch-1.1.0.tgz",
       "integrity": "sha1-upn7WYYUr2VwDBYZ/wbUVLDYTEU=",
+      "optional": true,
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         "@protobufjs/inquire": "^1.1.0"
@@ -203,27 +209,32 @@
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-      "integrity": "sha1-Xp4avctz/Ap8uLKR33jIy9l7h9E="
+      "integrity": "sha1-Xp4avctz/Ap8uLKR33jIy9l7h9E=",
+      "optional": true
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       "resolved": "https://registry.npmjs.org/@protobufjs/inquire/-/inquire-1.1.0.tgz",
-      "integrity": "sha1-/yAOPnzyQp4tyvwRQIKOjMY48Ik="
+      "integrity": "sha1-/yAOPnzyQp4tyvwRQIKOjMY48Ik=",
+      "optional": true
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       "resolved": "https://registry.npmjs.org/@protobufjs/path/-/path-1.1.2.tgz",
-      "integrity": "sha1-bMKyDFya1q0NzP0hynZz2Nf79o0="
+      "integrity": "sha1-bMKyDFya1q0NzP0hynZz2Nf79o0=",
+      "optional": true
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-      "integrity": "sha1-Cf0V8tbTq/qbZbw2ZQbWrXhG/1Q="
+      "integrity": "sha1-Cf0V8tbTq/qbZbw2ZQbWrXhG/1Q=",
+      "optional": true
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       "resolved": "https://registry.npmjs.org/@protobufjs/utf8/-/utf8-1.1.0.tgz",
-      "integrity": "sha1-p3c2C1s5oaLlEG+OhY8v0tBgxXA="
+      "integrity": "sha1-p3c2C1s5oaLlEG+OhY8v0tBgxXA=",
+      "optional": true
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@@ -243,7 +254,8 @@
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+      "integrity": "sha512-1w52Nyx4Gq47uuu0EVcsHBxZFJgurQ+rTKS3qMHxR1GY2T8c2AJYd6vZoZ9q1rupaDjU0yT+Jc2XTyXkjeMA+Q==",
+      "optional": true
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@@ -277,6 +289,7 @@
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+      "optional": true,
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@@ -294,6 +307,7 @@
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+      "optional": true,
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@@ -333,12 +347,14 @@
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       "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
-      "integrity": "sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0="
+      "integrity": "sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=",
+      "optional": true
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       "resolved": "https://registry.npmjs.org/ascli/-/ascli-1.0.1.tgz",
       "integrity": "sha1-vPpZdKYvGOgcq660lzKrSoj5Brw=",
+      "optional": true,
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@@ -348,6 +364,7 @@
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+      "optional": true,
       "requires": {
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@@ -360,7 +377,8 @@
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+      "integrity": "sha512-ccav/yGvoa80BQDljCxsmmQ3Xvx60/UpBIij5QN21W3wBi/hhIC9OoO+KLpu9IJTS9j4DRVJ3aDDF9cMSoa2lw==",
+      "optional": true
     },
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@@ -382,7 +400,8 @@
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+      "integrity": "sha512-S4XzBk5sMB+Rcb/LNcpzXr57VRTxgAvaAEDAl1AwRx27j00hT84O6OkteE7u8UB3NuaaygCRrEpqox4uDOrbdQ==",
+      "optional": true
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@@ -470,6 +489,7 @@
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       "integrity": "sha1-WC7qSxqHO20CCkjVjfhfC7ps/d0=",
+      "optional": true,
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@@ -477,7 +497,8 @@
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           "resolved": "https://registry.npmjs.org/long/-/long-3.2.0.tgz",
-          "integrity": "sha1-2CG3E4yhy1gcFymQ7xTbIAtcR0s="
+          "integrity": "sha1-2CG3E4yhy1gcFymQ7xTbIAtcR0s=",
+          "optional": true
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@@ -489,7 +510,8 @@
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-      "integrity": "sha1-fB0W1nmhu+WcoCys7PsBHiAfWh8="
+      "integrity": "sha1-fB0W1nmhu+WcoCys7PsBHiAfWh8=",
+      "optional": true
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@@ -510,6 +532,7 @@
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       "integrity": "sha1-EgYBU3qRbSmUD5NNo7SNWFo5IT0=",
+      "optional": true,
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@@ -537,7 +560,8 @@
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-      "integrity": "sha1-nLFpkX7F0SwHNtPoaFdG3xyt93g="
+      "integrity": "sha1-nLFpkX7F0SwHNtPoaFdG3xyt93g=",
+      "optional": true
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@@ -680,7 +704,8 @@
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-      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA="
+      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=",
+      "optional": true
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+      "optional": true,
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@@ -773,6 +799,7 @@
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+      "optional": true,
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@@ -786,12 +813,14 @@
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+      "integrity": "sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==",
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       "integrity": "sha1-UQnWLz5W6pZ8S2NQWu8IKRyKUgM=",
+      "optional": true,
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@@ -814,7 +843,8 @@
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@@ -856,12 +886,14 @@
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+      "integrity": "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==",
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@@ -967,6 +999,7 @@
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@@ -978,6 +1011,7 @@
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@@ -1025,6 +1059,7 @@
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@@ -1071,6 +1106,7 @@
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+      "optional": true,
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@@ -1079,7 +1115,8 @@
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+          "integrity": "sha512-vFMQIWt+J/7FLNyKouZ9TazT74PRV3wgv9UT4cRjC8BffxFbKXkgIWR42URCPSnHm/QDz6BOlb2Q0U4+VQT67Q==",
+          "optional": true
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@@ -1097,12 +1134,14 @@
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@@ -1113,19 +1152,23 @@
       "dependencies": {
         "abbrev": {
           "version": "1.1.1",
-          "bundled": true
+          "bundled": true,
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+          "bundled": true,
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+          "bundled": true,
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@@ -1133,11 +1176,13 @@
         },
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-          "bundled": true
+          "bundled": true,
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           "bundled": true,
+          "optional": true,
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@@ -1145,50 +1190,61 @@
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+          "bundled": true,
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+          "bundled": true,
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+          "bundled": true,
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+          "bundled": true,
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         "detect-libc": {
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         "fs-minipass": {
           "version": "1.2.5",
           "bundled": true,
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           "requires": {
             "minipass": "^2.2.1"
           }
         },
         "fs.realpath": {
           "version": "1.0.0",
-          "bundled": true
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+      "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA==",
+      "optional": true
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@@ -2206,7 +2308,8 @@
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       "resolved": "https://registry.npmjs.org/optjs/-/optjs-3.2.2.tgz",
-      "integrity": "sha1-aabOicRCpEQDFBrS+bNwvVu29O4="
+      "integrity": "sha1-aabOicRCpEQDFBrS+bNwvVu29O4=",
+      "optional": true
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@@ -2217,6 +2320,7 @@
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       "resolved": "https://registry.npmjs.org/os-locale/-/os-locale-1.4.0.tgz",
       "integrity": "sha1-IPnxeuKe00XoveWDsT0gCYA8FNk=",
+      "optional": true,
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       }
@@ -2268,7 +2372,8 @@
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       "resolved": "https://registry.npmjs.org/pify/-/pify-4.0.1.tgz",
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+      "integrity": "sha512-uB80kBFb/tfd68bVleG9T5GGsGPjJrLAUpR5PZIrhBnIaRTQRjqdJSsIKkOP6OAIFbj7GOrcudc5pNjZ+geV2g==",
+      "optional": true
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@@ -2284,6 +2389,7 @@
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+      "optional": true,
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@@ -2303,7 +2409,8 @@
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+          "integrity": "sha512-NelG/dSahlXYtSoVPErrp06tYFrvzj8XLWmKA+X8x0W//4MqbUyZu++giUG/v0bjAT6/Qxa8IjodrfdACyb0Fg==",
+          "optional": true
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@@ -2320,6 +2427,7 @@
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+      "optional": true,
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@@ -2329,6 +2437,7 @@
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       "resolved": "https://registry.npmjs.org/pumpify/-/pumpify-1.5.1.tgz",
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+      "optional": true,
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         "inherits": "^2.0.3",
@@ -2452,15 +2561,6 @@
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       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
     },
-    "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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       "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
@@ -2555,15 +2655,6 @@
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       "optional": true
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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"
-      }
-    },
     "split-array-stream": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/split-array-stream/-/split-array-stream-2.0.0.tgz",
@@ -2582,6 +2673,7 @@
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       "resolved": "https://registry.npmjs.org/stream-events/-/stream-events-1.0.5.tgz",
       "integrity": "sha512-E1GUzBSgvct8Jsb3v2X15pjzN1tYebtbLaMg+eBOUOAxgbLoSbT2NS91ckc5lJD1KfLjId+jXJRgo0qnV5Nerg==",
+      "optional": true,
       "requires": {
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       }
@@ -2589,7 +2681,8 @@
     "stream-shift": {
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       "resolved": "https://registry.npmjs.org/stream-shift/-/stream-shift-1.0.0.tgz",
-      "integrity": "sha1-1cdSgl5TZ+eG944Y5EXqIjoVWVI="
+      "integrity": "sha1-1cdSgl5TZ+eG944Y5EXqIjoVWVI=",
+      "optional": true
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     "streamsearch": {
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@@ -2630,7 +2723,8 @@
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       "resolved": "https://registry.npmjs.org/stubs/-/stubs-3.0.0.tgz",
-      "integrity": "sha1-6NK6H6nJBXAwPAMLaQD31fiavls="
+      "integrity": "sha1-6NK6H6nJBXAwPAMLaQD31fiavls=",
+      "optional": true
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     "supports-color": {
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@@ -2658,6 +2752,7 @@
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       "resolved": "https://registry.npmjs.org/teeny-request/-/teeny-request-3.11.3.tgz",
       "integrity": "sha512-CKncqSF7sH6p4rzCgkb/z/Pcos5efl0DmolzvlqRQUNcpRIruOhY9+T1FsIlyEbfWd7MsFpodROOwHYh2BaXzw==",
+      "optional": true,
       "requires": {
         "https-proxy-agent": "^2.2.1",
         "node-fetch": "^2.2.0",
@@ -2668,6 +2763,7 @@
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/through2/-/through2-3.0.1.tgz",
       "integrity": "sha512-M96dvTalPT3YbYLaKaCuwu+j06D/8Jfib0o/PxbVt6Amhv3dUAtW6rTV1jPgJSBG83I/e04Y6xkVdVhSRhi0ww==",
+      "optional": true,
       "requires": {
         "readable-stream": "2 || 3"
       }
@@ -2732,7 +2828,8 @@
     "uuid": {
       "version": "3.3.2",
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.3.2.tgz",
-      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA=="
+      "integrity": "sha512-yXJmeNaw3DnnKAOKJE51sL/ZaYfWJRl1pK9dr19YFCu0ObS231AB1/LbqTKRAQ5kw8A90rA6fr4riOUpTZvQZA==",
+      "optional": true
     },
     "vary": {
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@@ -2742,7 +2839,8 @@
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       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/walkdir/-/walkdir-0.3.2.tgz",
-      "integrity": "sha512-0Twghia4Z5wDGDYWURlhZmI47GvERMCsXIu0QZWVVZyW9ZjpbbZvD9Zy9M6cWiQQRRbAcYajIyKNavaZZDt1Uw=="
+      "integrity": "sha512-0Twghia4Z5wDGDYWURlhZmI47GvERMCsXIu0QZWVVZyW9ZjpbbZvD9Zy9M6cWiQQRRbAcYajIyKNavaZZDt1Uw==",
+      "optional": true
     },
     "websocket-driver": {
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@@ -2779,12 +2877,14 @@
     "window-size": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.4.tgz",
-      "integrity": "sha1-+OGqHuWlPsW/FR/6CXQqatdpeHY="
+      "integrity": "sha1-+OGqHuWlPsW/FR/6CXQqatdpeHY=",
+      "optional": true
     },
     "wrap-ansi": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
       "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
+      "optional": true,
       "requires": {
         "string-width": "^1.0.1",
         "strip-ansi": "^3.0.1"
@@ -2809,7 +2909,8 @@
     "xdg-basedir": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/xdg-basedir/-/xdg-basedir-3.0.0.tgz",
-      "integrity": "sha1-SWsswQnsqNus/i3HK2A8F8WHCtQ="
+      "integrity": "sha1-SWsswQnsqNus/i3HK2A8F8WHCtQ=",
+      "optional": true
     },
     "xmlhttprequest": {
       "version": "1.8.0",
@@ -2824,7 +2925,8 @@
     "y18n": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
-      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE="
+      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
+      "optional": true
     },
     "yallist": {
       "version": "3.0.3",
@@ -2835,6 +2937,7 @@
       "version": "3.32.0",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.32.0.tgz",
       "integrity": "sha1-AwiOnr+edWtpdRYR0qXvWRSCyZU=",
+      "optional": true,
       "requires": {
         "camelcase": "^2.0.1",
         "cliui": "^3.0.3",
diff --git a/package.json b/package.json
index 5f68d1f..7721d2f 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "express": "^4.17.1",
     "firebase-admin": "^7.4.0",
     "jsonwebtoken": "^8.5.1",
-    "mongoose": "^5.6.0",
+    "mongoose": "^5.7.5",
     "morgan": "^1.9.1",
     "path": "^0.12.7"
   },