diff --git a/package-lock.json b/package-lock.json
index e7a3dc9..41457d8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,6 +19,15 @@
         "defer-to-connect": "^1.0.1"
       }
     },
+    "@types/body-parser": {
+      "version": "1.19.1",
+      "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.19.1.tgz",
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+      "requires": {
+        "@types/connect": "*",
+        "@types/node": "*"
+      }
+    },
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       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/@types/bson/-/bson-4.0.3.tgz",
@@ -27,6 +36,40 @@
         "@types/node": "*"
       }
     },
+    "@types/connect": {
+      "version": "3.4.35",
+      "resolved": "https://registry.npmjs.org/@types/connect/-/connect-3.4.35.tgz",
+      "integrity": "sha512-cdeYyv4KWoEgpBISTxWvqYsVy444DOqehiF3fM3ne10AmJ62RSyNkUnxMJXHQWRQQX2eR94m5y1IZyDwBjV9FQ==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
+    "@types/express": {
+      "version": "4.17.13",
+      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.13.tgz",
+      "integrity": "sha512-6bSZTPaTIACxn48l50SR+axgrqm6qXFIxrdAKaG6PaJk3+zuUr35hBlgT7vOmJcum+OEaIBLtHV/qloEAFITeA==",
+      "requires": {
+        "@types/body-parser": "*",
+        "@types/express-serve-static-core": "^4.17.18",
+        "@types/qs": "*",
+        "@types/serve-static": "*"
+      }
+    },
+    "@types/express-serve-static-core": {
+      "version": "4.17.24",
+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.17.24.tgz",
+      "integrity": "sha512-3UJuW+Qxhzwjq3xhwXm2onQcFHn76frIYVbTu+kn24LFxI+dEhdfISDFovPB8VpEgW8oQCTpRuCe+0zJxB7NEA==",
+      "requires": {
+        "@types/node": "*",
+        "@types/qs": "*",
+        "@types/range-parser": "*"
+      }
+    },
+    "@types/mime": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/@types/mime/-/mime-1.3.2.tgz",
+      "integrity": "sha512-YATxVxgRqNH6nHEIsvg6k2Boc1JHI9ZbH5iWFFv/MTkchz3b1ieGDa5T0a9RznNdI0KhVbdbWSN+KWWrQZRxTw=="
+    },
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       "resolved": "https://registry.npmjs.org/@types/mongodb/-/mongodb-3.6.17.tgz",
@@ -36,11 +79,60 @@
         "@types/node": "*"
       }
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+    "@types/multer": {
+      "version": "1.4.7",
+      "resolved": "https://registry.npmjs.org/@types/multer/-/multer-1.4.7.tgz",
+      "integrity": "sha512-/SNsDidUFCvqqcWDwxv2feww/yqhNeTRL5CVoL3jU4Goc4kKEL10T7Eye65ZqPNi4HRx8sAEX59pV1aEH7drNA==",
+      "requires": {
+        "@types/express": "*"
+      }
+    },
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       "resolved": "https://registry.npmjs.org/@types/node/-/node-15.6.1.tgz",
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     },
+    "@types/pump": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@types/pump/-/pump-1.1.1.tgz",
+      "integrity": "sha512-wpRerjHDxFBQ4r8XNv3xHJZeuqrBBoeQ/fhgkooV2F7KsPIYRROb/+f9ODgZfOEyO5/w2ej4YQdpPPXipT8DAA==",
+      "requires": {
+        "@types/node": "*"
+      }
+    },
+    "@types/qs": {
+      "version": "6.9.7",
+      "resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.7.tgz",
+      "integrity": "sha512-FGa1F62FT09qcrueBA6qYTrJPVDzah9a+493+o2PCXsesWHIn27G98TsSMs3WPNbZIEj4+VJf6saSFpvD+3Zsw=="
+    },
+    "@types/range-parser": {
+      "version": "1.2.4",
+      "resolved": "https://registry.npmjs.org/@types/range-parser/-/range-parser-1.2.4.tgz",
+      "integrity": "sha512-EEhsLsD6UsDM1yFhAvy0Cjr6VwmpMWqFBCb9w07wVugF7w9nfajxLuVmngTIpgS6svCnm6Vaw+MZhoDCKnOfsw=="
+    },
+    "@types/serve-static": {
+      "version": "1.13.10",
+      "resolved": "https://registry.npmjs.org/@types/serve-static/-/serve-static-1.13.10.tgz",
+      "integrity": "sha512-nCkHGI4w7ZgAdNkrEu0bv+4xNV/XDqW+DydknebMOQwkpDGx8G+HTlj7R7ABI8i8nKxVw0wtKPi1D+lPOkh4YQ==",
+      "requires": {
+        "@types/mime": "^1",
+        "@types/node": "*"
+      }
+    },
+    "@types/webidl-conversions": {
+      "version": "6.1.1",
+      "resolved": "https://registry.npmjs.org/@types/webidl-conversions/-/webidl-conversions-6.1.1.tgz",
+      "integrity": "sha512-XAahCdThVuCFDQLT7R7Pk/vqeObFNL3YqRyFZg+AqAP/W1/w3xHaIxuW7WszQqTbIBOPRcItYJIou3i/mppu3Q=="
+    },
+    "@types/whatwg-url": {
+      "version": "8.2.1",
+      "resolved": "https://registry.npmjs.org/@types/whatwg-url/-/whatwg-url-8.2.1.tgz",
+      "integrity": "sha512-2YubE1sjj5ifxievI5Ge1sckb9k/Er66HyR2c+3+I6VDUUg1TLPdYYTEbQ+DjRkS4nTxMJhgWfSfMRD2sl2EYQ==",
+      "requires": {
+        "@types/node": "*",
+        "@types/webidl-conversions": "*"
+      }
+    },
     "abbrev": {
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       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
@@ -123,6 +215,11 @@
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       "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
     },
+    "base64-js": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
+      "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA=="
+    },
     "binary-extensions": {
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       "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz",
@@ -228,6 +325,15 @@
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     },
+    "buffer": {
+      "version": "5.7.1",
+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.7.1.tgz",
+      "integrity": "sha512-EHcyIPBQ4BSGlvjB16k5KgAJ27CIsHY/2JBmCRReo48y9rQ3MaUzWX3KVlBa4U7MyX02HdVj0K7C3WaB3ju7FQ==",
+      "requires": {
+        "base64-js": "^1.3.1",
+        "ieee754": "^1.1.13"
+      }
+    },
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       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
@@ -757,6 +863,11 @@
         "safer-buffer": ">= 2.1.2 < 3"
       }
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+    "ieee754": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.2.1.tgz",
+      "integrity": "sha512-dcyqhDvX1C46lXZcVqCpK+FtMRQVdIMN6/Df5js2zouUsqG7I6sFxitIC+7KYK29KdXOLHdu9zL4sFnoVQnqaA=="
+    },
     "ignore-by-default": {
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       "resolved": "https://registry.npmjs.org/ignore-by-default/-/ignore-by-default-1.0.1.tgz",
@@ -1059,16 +1170,38 @@
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-      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-3.6.1.tgz",
-      "integrity": "sha512-uH76Zzr5wPptnjEKJRQnwTsomtFOU/kQEU8a9hKHr2M7y9qVk7Q4Pkv0EQVp88742z9+RwvsdTw6dRjDZCNu1g==",
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/mongodb/-/mongodb-4.1.2.tgz",
+      "integrity": "sha512-pHCKDoOy1h6mVurziJmXmTMPatYWOx8pbnyFgSgshja9Y36Q+caHUzTDY6rrIy9HCSrjnbXmx3pCtvNZHmR8xg==",
+      "requires": {
+        "bson": "^4.5.2",
+        "denque": "^2.0.1",
+        "mongodb-connection-string-url": "^2.0.0",
+        "saslprep": "^1.0.3"
+      },
+      "dependencies": {
+        "bson": {
+          "version": "4.5.2",
+          "resolved": "https://registry.npmjs.org/bson/-/bson-4.5.2.tgz",
+          "integrity": "sha512-8CEMJpwc7qlQtrn2rney38jQSEeMar847lz0LyitwRmVknAW8iHXrzW4fTjHfyWm0E3sukyD/zppdH+QU1QefA==",
+          "requires": {
+            "buffer": "^5.6.0"
+          }
+        },
+        "denque": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/denque/-/denque-2.0.1.tgz",
+          "integrity": "sha512-tfiWc6BQLXNLpNiR5iGd0Ocu3P3VpxfzFiqubLgMfhfOw9WyvgJBd46CClNn9k3qfbjvT//0cf7AlYRX/OslMQ=="
+        }
+      }
+    },
+    "mongodb-connection-string-url": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/mongodb-connection-string-url/-/mongodb-connection-string-url-2.1.0.tgz",
+      "integrity": "sha512-Qf9Zw7KGiRljWvMrrUFDdVqo46KIEiDuCzvEN97rh/PcKzk2bd6n9KuzEwBwW9xo5glwx69y1mI6s+jFUD/aIQ==",
       "requires": {
-        "bl": "^2.2.0",
-        "bson": "^1.1.4",
-        "denque": "^1.4.1",
-        "require_optional": "^1.0.1",
-        "safe-buffer": "^5.1.2",
-        "saslprep": "^1.0.0"
+        "@types/whatwg-url": "^8.2.1",
+        "whatwg-url": "^9.1.0"
       }
     },
     "mongodb-uri": {
@@ -1173,10 +1306,14 @@
       }
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     "multer-gridfs-storage": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/multer-gridfs-storage/-/multer-gridfs-storage-4.2.0.tgz",
-      "integrity": "sha512-N2/QlZVsHUGSNmHx367+j2u8MpuZHxb0AEu9wsqNH0ROusSlcl7ERBt6en+IuHv4kAnrLNE4CTNo1yYHoUb7YA==",
-      "requires": {
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/multer-gridfs-storage/-/multer-gridfs-storage-5.0.2.tgz",
+      "integrity": "sha512-oYl70i792uyJfgpvOfJrZIru4MsjjAueDHLZXTDGix/yPJuk1/lfqdPHHnv/XVVGfVZb4G9jJqwEFf9JIX1SOQ==",
+      "requires": {
+        "@types/express": "^4.17.6",
+        "@types/mongodb": "^3.5.25",
+        "@types/multer": "^1.4.3",
+        "@types/pump": "^1.1.0",
         "has-own-prop": "^2.0.0",
         "is-generator": "^1.0.3",
         "is-promise": "^4.0.0",
@@ -1350,6 +1487,11 @@
         "once": "^1.3.1"
       }
     },
+    "punycode": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
+      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
+    },
     "pupa": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/pupa/-/pupa-2.1.1.tgz",
@@ -1435,20 +1577,6 @@
         "rc": "^1.2.8"
       }
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-    "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="
-    },
     "responselike": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/responselike/-/responselike-1.0.2.tgz",
@@ -1480,7 +1608,8 @@
     "semver": {
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       "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
-      "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ=="
+      "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+      "dev": true
     },
     "semver-diff": {
       "version": "3.1.1",
@@ -1680,6 +1809,14 @@
         "nopt": "~1.0.10"
       }
     },
+    "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-fest": {
       "version": "0.8.1",
       "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.8.1.tgz",
@@ -1777,6 +1914,20 @@
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
       "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"
+      }
+    },
     "widest-line": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/widest-line/-/widest-line-3.1.0.tgz",
diff --git a/package.json b/package.json
index c7ba437..0295fab 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "express": "^4.17.1",
     "mongoose": "^5.12.12",
     "multer": "^1.4.2",
-    "multer-gridfs-storage": "^4.2.0"
+    "multer-gridfs-storage": "^5.0.2"
   },
   "devDependencies": {
     "nodemon": "^2.0.7"