diff --git a/backend/package-lock.json b/backend/package-lock.json
index f815dfc..f8ec3c1 100644
--- a/backend/package-lock.json
+++ b/backend/package-lock.json
@@ -18,7 +18,7 @@
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+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.7.1.tgz",
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-      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-6.2.0.tgz",
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@@ -1046,6 +1058,11 @@
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+      "resolved": "https://registry.npmjs.org/domexception/-/domexception-2.0.1.tgz",
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+        "webidl-conversions": "^5.0.0"
+      },
+      "engines": {
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+    "node_modules/domexception/node_modules/webidl-conversions": {
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+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-5.0.0.tgz",
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@@ -1232,12 +1260,12 @@
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+      "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-2.0.0.tgz",
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@@ -1246,7 +1274,7 @@
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+        "node": ">=6.0"
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@@ -1265,9 +1293,9 @@
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@@ -2389,6 +2420,11 @@
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-        "webidl-conversions": "^4.0.2",
+      "version": "16.5.0",
+      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-16.5.0.tgz",
+      "integrity": "sha512-QxZH0nmDTnTTVI0YDm4RUlaUPl5dcyn62G5TMDNfMmTW+J1u1v9gCR8WR+WZ6UghAa7nKJjDOFaI00eMMWvJFQ==",
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+        "acorn": "^8.0.5",
+        "acorn-globals": "^6.0.0",
+        "cssom": "^0.4.4",
+        "cssstyle": "^2.3.0",
+        "data-urls": "^2.0.0",
+        "decimal.js": "^10.2.1",
+        "domexception": "^2.0.1",
+        "escodegen": "^2.0.0",
+        "html-encoding-sniffer": "^2.0.1",
+        "is-potential-custom-element-name": "^1.0.0",
+        "nwsapi": "^2.2.0",
+        "parse5": "6.0.1",
+        "request": "^2.88.2",
+        "request-promise-native": "^1.0.9",
+        "saxes": "^5.0.1",
+        "symbol-tree": "^3.2.4",
+        "tough-cookie": "^4.0.0",
+        "w3c-hr-time": "^1.0.2",
+        "w3c-xmlserializer": "^2.0.0",
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-        "whatwg-url": "^7.0.0",
-        "ws": "^6.1.0",
+        "whatwg-mimetype": "^2.3.0",
+        "whatwg-url": "^8.0.0",
+        "ws": "^7.4.4",
         "xml-name-validator": "^3.0.0"
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+          "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-4.0.0.tgz",
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+          "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
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@@ -7430,11 +7528,6 @@
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@@ -8055,9 +8148,9 @@
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+      "version": "6.0.1",
+      "resolved": "https://registry.npmjs.org/parse5/-/parse5-6.0.1.tgz",
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@@ -8171,23 +8264,6 @@
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-          "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-2.0.0.tgz",
-          "integrity": "sha512-mmHKys/C8BFUGI+MAWNcSYoORYLMdPzjrknd2Vc+bUsjN5bXcr8EhrNB+UTqfL1y3I9c4fw2ihgtMPQLBRiQxw==",
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-            "optionator": "^0.8.1",
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-        "estraverse": {
-          "version": "5.3.0",
-          "resolved": "https://registry.npmjs.org/estraverse/-/estraverse-5.3.0.tgz",
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@@ -8289,11 +8365,6 @@
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-      "resolved": "https://registry.npmjs.org/pn/-/pn-1.1.0.tgz",
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@@ -8644,11 +8715,11 @@
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-      "resolved": "https://registry.npmjs.org/saxes/-/saxes-3.1.11.tgz",
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+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/saxes/-/saxes-5.0.1.tgz",
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-        "xmlchars": "^2.1.1"
+        "xmlchars": "^2.2.0"
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@@ -9193,11 +9264,11 @@
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-      "resolved": "https://registry.npmjs.org/tr46/-/tr46-1.0.1.tgz",
-      "integrity": "sha1-qLE/1r/SSJUZZ0zN5VujaTtwbQk=",
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-2.1.0.tgz",
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       "requires": {
-        "punycode": "^2.1.0"
+        "punycode": "^2.1.1"
       }
     },
     "tslib": {
@@ -9408,10 +9479,18 @@
         "browser-process-hrtime": "^1.0.0"
       }
     },
+    "w3c-xmlserializer": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/w3c-xmlserializer/-/w3c-xmlserializer-2.0.0.tgz",
+      "integrity": "sha512-4tzD0mF8iSiMiNs30BiLO3EpfGLZUT2MSX/G+o7ZywDzliWQ3OPtTZ0PTC3B3ca1UAf4cJMHB+2Bf56EriJuRA==",
+      "requires": {
+        "xml-name-validator": "^3.0.0"
+      }
+    },
     "webidl-conversions": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-4.0.2.tgz",
-      "integrity": "sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg=="
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-6.1.0.tgz",
+      "integrity": "sha512-qBIvFLGiBpLjfwmYAaHPXsn+ho5xZnGvyGvsarywGNc8VyQJUMHJ8OBKGGrPER0okBeMDaan4mNBlgBROxuI8w=="
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@@ -9427,13 +9506,13 @@
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-      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-7.1.0.tgz",
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+      "version": "8.7.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-8.7.0.tgz",
+      "integrity": "sha512-gAojqb/m9Q8a5IV96E3fHJM70AzCkgt4uXYX2O7EmuyOnLrViCQlsEBmF9UQIu3/aeAIp2U17rtbpZWNntQqdg==",
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-        "lodash.sortby": "^4.7.0",
-        "tr46": "^1.0.1",
-        "webidl-conversions": "^4.0.2"
+        "lodash": "^4.7.0",
+        "tr46": "^2.1.0",
+        "webidl-conversions": "^6.1.0"
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@@ -9542,12 +9621,10 @@
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-      "requires": {
-        "async-limiter": "~1.0.0"
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+      "version": "7.5.8",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.8.tgz",
+      "integrity": "sha512-ri1Id1WinAX5Jqn9HejiGb8crfRio0Qgu8+MtL36rlTA6RLsMdWt1Az/19A2Qij6uSHUMphEFaTKa4WG+UNHNw==",
+      "requires": {}
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diff --git a/backend/package.json b/backend/package.json
index e0073d0..0cef89b 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -20,7 +20,7 @@
     "express": "^4.17.1",
     "food-words": "^1.1.0",
     "jquery": "^3.5.1",
-    "jsdom": "^12.0.0",
+    "jsdom": "^16.5.0",
     "lodash": "^4.17.21",
     "mocha": "^5.2.0",
     "moment": "^2.29.2",