diff --git a/back-end/package-lock.json b/back-end/package-lock.json
index 1ff3bfa..b30e0ae 100644
--- a/back-end/package-lock.json
+++ b/back-end/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.1.0",
       "dependencies": {
         "@hapi/boom": "9.1.4",
-        "@types/express": "4.17.13",
+        "@types/express": "^4.17.21",
         "body-parser": "1.19.2",
         "cors": "2.8.5",
         "dotenv": "16.0.0",
@@ -863,24 +863,27 @@
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-      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.13.tgz",
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+      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.21.tgz",
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+      "license": "MIT",
       "dependencies": {
         "@types/body-parser": "*",
-        "@types/express-serve-static-core": "^4.17.18",
+        "@types/express-serve-static-core": "^4.17.33",
         "@types/qs": "*",
         "@types/serve-static": "*"
       }
     },
     "node_modules/@types/express-serve-static-core": {
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-      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.17.24.tgz",
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+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.19.5.tgz",
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+      "license": "MIT",
       "dependencies": {
         "@types/node": "*",
         "@types/qs": "*",
-        "@types/range-parser": "*"
+        "@types/range-parser": "*",
+        "@types/send": "*"
       }
     },
     "node_modules/@types/json-schema": {
@@ -905,14 +908,26 @@
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     },
     "node_modules/@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=="
+      "version": "6.9.16",
+      "resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.16.tgz",
+      "integrity": "sha512-7i+zxXdPD0T4cKDuxCUXJ4wHcsJLwENa6Z3dCu8cfCK743OGy5Nu1RmAGqDPsoTDINVEcdXKRvR/zre+P2Ku1A==",
+      "license": "MIT"
     },
     "node_modules/@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=="
+      "version": "1.2.7",
+      "resolved": "https://registry.npmjs.org/@types/range-parser/-/range-parser-1.2.7.tgz",
+      "integrity": "sha512-hKormJbkJqzQGhziax5PItDUTMAM9uE2XXQmM37dyd4hVM+5aVl7oVxMVUiVQn2oCQFN/LKCZdvSM0pFRqbSmQ==",
+      "license": "MIT"
+    },
+    "node_modules/@types/send": {
+      "version": "0.17.4",
+      "resolved": "https://registry.npmjs.org/@types/send/-/send-0.17.4.tgz",
+      "integrity": "sha512-x2EM6TJOybec7c52BX0ZspPodMsQUd5L6PRwOunVyVUhXiBSKf3AezDL8Dgvgt5o0UfKNfuA0eMLr2wLT4AiBA==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/mime": "^1",
+        "@types/node": "*"
+      }
     },
     "node_modules/@types/serve-static": {
       "version": "1.13.10",
@@ -10108,24 +10123,25 @@
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     },
     "@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==",
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.21.tgz",
+      "integrity": "sha512-ejlPM315qwLpaQlQDTjPdsUFSc6ZsP4AN6AlWnogPjQ7CVi7PYF3YVz+CY3jE2pwYf7E/7HlDAN0rV2GxTG0HQ==",
       "requires": {
         "@types/body-parser": "*",
-        "@types/express-serve-static-core": "^4.17.18",
+        "@types/express-serve-static-core": "^4.17.33",
         "@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==",
+      "version": "4.19.5",
+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.19.5.tgz",
+      "integrity": "sha512-y6W03tvrACO72aijJ5uF02FRq5cgDR9lUxddQ8vyF+GvmjJQqbzDcJngEjURc+ZsG31VI3hODNZJ2URj86pzmg==",
       "requires": {
         "@types/node": "*",
         "@types/qs": "*",
-        "@types/range-parser": "*"
+        "@types/range-parser": "*",
+        "@types/send": "*"
       }
     },
     "@types/json-schema": {
@@ -10150,14 +10166,23 @@
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     },
     "@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=="
+      "version": "6.9.16",
+      "resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.16.tgz",
+      "integrity": "sha512-7i+zxXdPD0T4cKDuxCUXJ4wHcsJLwENa6Z3dCu8cfCK743OGy5Nu1RmAGqDPsoTDINVEcdXKRvR/zre+P2Ku1A=="
     },
     "@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=="
+      "version": "1.2.7",
+      "resolved": "https://registry.npmjs.org/@types/range-parser/-/range-parser-1.2.7.tgz",
+      "integrity": "sha512-hKormJbkJqzQGhziax5PItDUTMAM9uE2XXQmM37dyd4hVM+5aVl7oVxMVUiVQn2oCQFN/LKCZdvSM0pFRqbSmQ=="
+    },
+    "@types/send": {
+      "version": "0.17.4",
+      "resolved": "https://registry.npmjs.org/@types/send/-/send-0.17.4.tgz",
+      "integrity": "sha512-x2EM6TJOybec7c52BX0ZspPodMsQUd5L6PRwOunVyVUhXiBSKf3AezDL8Dgvgt5o0UfKNfuA0eMLr2wLT4AiBA==",
+      "requires": {
+        "@types/mime": "^1",
+        "@types/node": "*"
+      }
     },
     "@types/serve-static": {
       "version": "1.13.10",
diff --git a/back-end/package.json b/back-end/package.json
index 3ad0688..94ab49d 100644
--- a/back-end/package.json
+++ b/back-end/package.json
@@ -19,7 +19,7 @@
   },
   "dependencies": {
     "@hapi/boom": "9.1.4",
-    "@types/express": "4.17.13",
+    "@types/express": "4.17.21",
     "body-parser": "1.19.2",
     "cors": "2.8.5",
     "dotenv": "16.0.0",