diff --git a/frontend/package.json b/frontend/package.json
index d409fe3..1a091cf 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -35,7 +35,7 @@
     "@angular/compiler-cli": "10.0.11",
     "@angular/language-service": "10.0.11",
     "@types/node": "12.12.30",
-    "codelyzer": "5.2.2",
+    "codelyzer": "6.0.1",
     "ts-node": "7.0.1",
     "tslint": "6.1.3",
     "typescript": "3.9.7"
diff --git a/frontend/yarn.lock b/frontend/yarn.lock
index 7813753..64c62e1 100644
--- a/frontend/yarn.lock
+++ b/frontend/yarn.lock
@@ -186,6 +186,11 @@
   dependencies:
     tslib "^2.0.0"
 
+"@angular/compiler@9.0.0":
+  version "9.0.0"
+  resolved "https://registry.yarnpkg.com/@angular/compiler/-/compiler-9.0.0.tgz#87e0bef4c369b6cadae07e3a4295778fc93799d5"
+  integrity sha512-ctjwuntPfZZT2mNj2NDIVu51t9cvbhl/16epc5xEwyzyDt76pX9UgwvY+MbXrf/C/FWwdtmNtfP698BKI+9leQ==
+
 "@angular/core@10.0.11":
   version "10.0.11"
   resolved "https://registry.yarnpkg.com/@angular/core/-/core-10.0.11.tgz#cb64085089e1d709a04d4093ee96709177faebe4"
@@ -193,6 +198,11 @@
   dependencies:
     tslib "^2.0.0"
 
+"@angular/core@9.0.0":
+  version "9.0.0"
+  resolved "https://registry.yarnpkg.com/@angular/core/-/core-9.0.0.tgz#227dc53e1ac81824f998c6e76000b7efc522641e"
+  integrity sha512-6Pxgsrf0qF9iFFqmIcWmjJGkkCaCm6V5QNnxMy2KloO3SDq6QuMVRbN9RtC8Urmo25LP+eZ6ZgYqFYpdD8Hd9w==
+
 "@angular/forms@10.0.11":
   version "10.0.11"
   resolved "https://registry.yarnpkg.com/@angular/forms/-/forms-10.0.11.tgz#87541e729df471bebe0c9897ad2654a928d829ba"
@@ -1758,10 +1768,10 @@ anymatch@~3.1.1:
     normalize-path "^3.0.0"
     picomatch "^2.0.4"
 
-app-root-path@^2.2.1:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/app-root-path/-/app-root-path-2.2.1.tgz#d0df4a682ee408273583d43f6f79e9892624bc9a"
-  integrity sha512-91IFKeKk7FjfmezPKkwtaRvSpnUc4gDwPAjA1YZ9Gn0q0PPeW+vbeUsZuyDwjI7+QTHhcLen2v25fi/AmhvbJA==
+app-root-path@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/app-root-path/-/app-root-path-3.0.0.tgz#210b6f43873227e18a4b810a032283311555d5ad"
+  integrity sha512-qMcx+Gy2UZynHjOHOIXPNvpf+9cjvk3cWrBBK7zg4gH9+clobJRb9NGzcT7mQTcV/6Gm/1WelUtqxVXnNlrwcw==
 
 aproba@^1.1.1:
   version "1.2.0"
@@ -2614,20 +2624,25 @@ coa@^2.0.2:
     chalk "^2.4.1"
     q "^1.1.2"
 
-codelyzer@5.2.2:
-  version "5.2.2"
-  resolved "https://registry.yarnpkg.com/codelyzer/-/codelyzer-5.2.2.tgz#d0530a455784e6bea0b6d7e97166c73c30a5347f"
-  integrity sha512-jB4FZ1Sx7kZhvZVdf+N2BaKTdrrNZOL0Bj10RRfrhHrb3zEvXjJvvq298JPMJAiyiCS/v4zs1QlGU0ip7xGqeA==
+codelyzer@6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/codelyzer/-/codelyzer-6.0.1.tgz#c0e9668e847255b37c759e68fb2700b11e277d0f"
+  integrity sha512-cOyGQgMdhnRYtW2xrJUNrNYDjEgwQ+BrE2y93Bwz3h4DJ6vJRLfupemU5N3pbYsUlBHJf0u1j1UGk+NLW4d97g==
   dependencies:
-    app-root-path "^2.2.1"
+    "@angular/compiler" "9.0.0"
+    "@angular/core" "9.0.0"
+    app-root-path "^3.0.0"
     aria-query "^3.0.0"
     axobject-query "2.0.2"
     css-selector-tokenizer "^0.7.1"
     cssauron "^1.4.0"
     damerau-levenshtein "^1.0.4"
+    rxjs "^6.5.3"
     semver-dsl "^1.0.1"
     source-map "^0.5.7"
     sprintf-js "^1.1.2"
+    tslib "^1.10.0"
+    zone.js "~0.10.3"
 
 collection-visit@^1.0.0:
   version "1.0.0"
@@ -8987,3 +9002,8 @@ zone.js@0.11.1:
   integrity sha512-KcZawpmVgS+3U2rzKTM6fLKaCX1QDv3//NxiSOOsqpQY/r5hl+xpYikPwY93Sp7CAB+J5mZJpb/YubxEYLGK5g==
   dependencies:
     tslib "^2.0.0"
+
+zone.js@~0.10.3:
+  version "0.10.3"
+  resolved "https://registry.yarnpkg.com/zone.js/-/zone.js-0.10.3.tgz#3e5e4da03c607c9dcd92e37dd35687a14a140c16"
+  integrity sha512-LXVLVEq0NNOqK/fLJo3d0kfzd4sxwn2/h67/02pjCjfKDxgx1i9QqpvtHD8CrBnSSwMw5+dy11O7FRX5mkO7Cg==