diff --git a/backend/package-lock.json b/backend/package-lock.json
index b3bb62f..7e333f1 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -14,7 +14,7 @@
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         "cors": "^2.8.5",
         "debug": "~2.6.9",
-        "express": "~4.16.1",
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         "jade": "~1.11.0",
         "morgan": "~1.9.1",
@@ -414,25 +414,80 @@
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+        "http-errors": "2.0.0",
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+        "inherits": "2.0.4",
+        "setprototypeof": "1.2.0",
+        "statuses": "2.0.1",
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+      "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
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+    "node_modules/body-parser/node_modules/on-finished": {
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+      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
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+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
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+    "node_modules/body-parser/node_modules/statuses": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
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@@ -493,9 +548,9 @@
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@@ -718,13 +773,35 @@
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+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.4.tgz",
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+        "safe-buffer": "5.2.1"
+      },
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       }
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+    "node_modules/content-disposition/node_modules/safe-buffer": {
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+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
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+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
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     "node_modules/content-type": {
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@@ -863,9 +940,13 @@
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+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/destroy/-/destroy-1.2.0.tgz",
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@@ -1067,38 +1148,39 @@
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+        "accepts": "~1.3.8",
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-        "body-parser": "1.18.3",
-        "content-disposition": "0.5.2",
+        "body-parser": "1.20.1",
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+        "cookie": "0.5.0",
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         "debug": "2.6.9",
-        "depd": "~1.1.2",
+        "depd": "2.0.0",
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         "escape-html": "~1.0.3",
         "etag": "~1.8.1",
-        "finalhandler": "1.1.1",
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         "methods": "~1.1.2",
-        "on-finished": "~2.3.0",
-        "parseurl": "~1.3.2",
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-        "serve-static": "1.13.2",
-        "setprototypeof": "1.1.0",
-        "statuses": "~1.4.0",
-        "type-is": "~1.6.16",
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+        "qs": "6.11.0",
+        "range-parser": "~1.2.1",
+        "safe-buffer": "5.2.1",
+        "send": "0.18.0",
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@@ -1107,13 +1189,84 @@
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       "engines": {
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       }
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+    "node_modules/express/node_modules/depd": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/depd/-/depd-2.0.0.tgz",
+      "integrity": "sha512-g7nH6P6dyDioJogAAGprGpCtVImJhpPk/roCzdb3fIh61/s/nPsfR6onyMwkCAR/OlC3yBC0lESvUoQEAssIrw==",
+      "engines": {
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+      }
+    },
+    "node_modules/express/node_modules/http-errors": {
+      "version": "2.0.0",
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+      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
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+      "engines": {
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+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
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+    "node_modules/express/node_modules/setprototypeof": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.2.0.tgz",
+      "integrity": "sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw=="
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+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
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@@ -1126,22 +1279,41 @@
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         "escape-html": "~1.0.3",
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-        "statuses": "~1.4.0",
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+        "parseurl": "~1.3.3",
+        "statuses": "2.0.1",
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         "node": ">= 0.8"
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+    "node_modules/finalhandler/node_modules/on-finished": {
+      "version": "2.4.1",
+      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
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+      "engines": {
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+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
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@@ -1465,9 +1637,9 @@
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@@ -1787,11 +1959,14 @@
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+      "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
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       "bin": {
         "mime": "cli.js"
+      },
+      "engines": {
+        "node": ">=4"
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     "node_modules/mime-db": {
@@ -2213,6 +2388,14 @@
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+      "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.12.3.tgz",
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+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
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@@ -2373,11 +2556,17 @@
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-        "range-parser": "~1.2.0",
-        "statuses": "~1.4.0"
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+        "statuses": "2.0.1"
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+      "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.15.0.tgz",
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-        "send": "0.16.2"
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@@ -2555,6 +2842,19 @@
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     },
+    "node_modules/side-channel": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.0.4.tgz",
+      "integrity": "sha512-q5XPytqFEIKHkGdiMIrY10mvLRvnQh42/+GoBlFW3b2LXLE2xxJpZFdm94we0BaoV3RwJyGqg5wS7epxTv0Zvw==",
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+        "get-intrinsic": "^1.0.2",
+        "object-inspect": "^1.9.0"
+      },
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+        "url": "https://github.com/sponsors/ljharb"
+      }
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     "node_modules/signal-exit": {
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       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.7.tgz",
@@ -2911,6 +3211,14 @@
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+      "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz",
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diff --git a/backend/package.json b/backend/package.json
index 026fba6..032b046 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -12,7 +12,7 @@
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-    "express": "~4.16.1",
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     "jade": "~1.11.0",
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