diff --git a/package.json b/package.json
index 055fa17..a1aacb8 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "eslint": "^7.20.0",
     "eslint-config-airbnb-base": "^14.2.1",
     "eslint-plugin-import": "^2.22.1",
-    "mocha": "^8.3.0",
+    "mocha": "^9.0.0",
     "nodemon": "^2.0.7",
     "prettier": "^2.2.1"
   },
diff --git a/yarn.lock b/yarn.lock
index 22a322a..f227f6f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -670,6 +670,14 @@ chalk@^4.0.0:
     ansi-styles "^4.1.0"
     supports-color "^7.1.0"
 
+chalk@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/chalk/-/chalk-4.1.1.tgz#c80b3fab28bf6371e6863325eee67e618b77e6ad"
+  integrity sha512-diHzdDKxcU+bAsUboHLPEDQiw0qEe0qd7SYUn3HgcFlWgbDcfLGswOHYeGrHKzG9z6UYf01d9VFMfZxPM1xZSg==
+  dependencies:
+    ansi-styles "^4.1.0"
+    supports-color "^7.1.0"
+
 charm@~0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/charm/-/charm-0.1.2.tgz#06c21eed1a1b06aeb67553cdc53e23274bac2296"
@@ -1760,7 +1768,7 @@ glob-parent@^5.0.0, glob-parent@~5.1.0:
   dependencies:
     is-glob "^4.0.1"
 
-glob@7.1.6, glob@^7.0.3, glob@^7.0.5, glob@^7.1.3:
+glob@7.1.6:
   version "7.1.6"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
   integrity sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==
@@ -1772,6 +1780,18 @@ glob@7.1.6, glob@^7.0.3, glob@^7.0.5, glob@^7.1.3:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
+glob@7.1.7, glob@^7.0.3, glob@^7.0.5, glob@^7.1.3:
+  version "7.1.7"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.7.tgz#3b193e9233f01d42d0b3f78294bbeeb418f94a90"
+  integrity sha512-OvD9ENzPLbegENnYP5UUfJIirTg4+XwMWGaQfQTY0JenxNvvIKP3U3/tAQSPIu/lHxXYSZmpXlUHeqAIdKzBLQ==
+  dependencies:
+    fs.realpath "^1.0.0"
+    inflight "^1.0.4"
+    inherits "2"
+    minimatch "^3.0.4"
+    once "^1.3.0"
+    path-is-absolute "^1.0.0"
+
 global-dirs@^2.0.1:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/global-dirs/-/global-dirs-2.1.0.tgz#e9046a49c806ff04d6c1825e196c8f0091e8df4d"
@@ -2130,6 +2150,11 @@ is-typedarray@^1.0.0:
   resolved "https://registry.yarnpkg.com/is-typedarray/-/is-typedarray-1.0.0.tgz#e479c80858df0c1b11ddda6940f96011fcda4a9a"
   integrity sha1-5HnICFjfDBsR3dppQPlgEfzaSpo=
 
+is-unicode-supported@^0.1.0:
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/is-unicode-supported/-/is-unicode-supported-0.1.0.tgz#3f26c76a809593b52bfa2ecb5710ed2779b522a7"
+  integrity sha512-knxG2q4UC3u8stRGyAVJCOdxFmv5DZiRcdlIaAQXAbSfJya+OhopNotLQrstBhququ4ZpuKbDc/8S6mgXgPFPw==
+
 is-yarn-global@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/is-yarn-global/-/is-yarn-global-0.3.0.tgz#d502d3382590ea3004893746754c89139973e232"
@@ -2176,10 +2201,10 @@ js-tokens@^4.0.0:
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
   integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
 
-js-yaml@4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.0.0.tgz#f426bc0ff4b4051926cd588c71113183409a121f"
-  integrity sha512-pqon0s+4ScYUvX30wxQi3PogGFAlUyH0awepWvwkj4jD4v+ova3RiYw8bmA6x2rDrEaj8i/oWKoRxpVNW+Re8Q==
+js-yaml@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-4.1.0.tgz#c1fb65f8f5017901cdd2c951864ba18458a10602"
+  integrity sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==
   dependencies:
     argparse "^2.0.1"
 
@@ -2398,12 +2423,13 @@ log-driver@^1.2.7:
   resolved "https://registry.yarnpkg.com/log-driver/-/log-driver-1.2.7.tgz#63b95021f0702fedfa2c9bb0a24e7797d71871d8"
   integrity sha512-U7KCmLdqsGHBLeWqYlFA0V0Sl6P08EE1ZrmA9cxjUE0WVqT9qnyVDPz1kzpFEP0jdJuFnasWIfSd7fsaNXkpbg==
 
-log-symbols@4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-4.0.0.tgz#69b3cc46d20f448eccdb75ea1fa733d9e821c920"
-  integrity sha512-FN8JBzLx6CzeMrB0tg6pqlGU1wCrXW+ZXGH481kfsBqer0hToTIiHdjH4Mq8xJUbvATujKCvaREGWpGUionraA==
+log-symbols@4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-4.1.0.tgz#3fbdbb95b4683ac9fc785111e792e558d4abd503"
+  integrity sha512-8XPvpAA8uyhfteu8pIvQxpJZ7SYYdpUivZpGy6sFsBuKRY/7rQGavedeB8aK+Zkyq6upMFVL/9AW6vOYzfRyLg==
   dependencies:
-    chalk "^4.0.0"
+    chalk "^4.1.0"
+    is-unicode-supported "^0.1.0"
 
 logform@^2.2.0:
   version "2.2.0"
@@ -2524,10 +2550,10 @@ mkdirp@1.0.4:
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-1.0.4.tgz#3eb5ed62622756d79a5f0e2a221dfebad75c2f7e"
   integrity sha512-vVqVZQyf3WLx2Shd0qJ9xuvqgAyKPLAiqITEtqW0oIUjzo3PePDd6fW9iFz30ef7Ysp/oiWqbhszeGWW2T6Gzw==
 
-mocha@^8.3.0:
-  version "8.3.0"
-  resolved "https://registry.yarnpkg.com/mocha/-/mocha-8.3.0.tgz#a83a7432d382ae1ca29686062d7fdc2c36f63fe5"
-  integrity sha512-TQqyC89V1J/Vxx0DhJIXlq9gbbL9XFNdeLQ1+JsnZsVaSOV1z3tWfw0qZmQJGQRIfkvZcs7snQnZnOCKoldq1Q==
+mocha@^9.0.0:
+  version "9.0.0"
+  resolved "https://registry.yarnpkg.com/mocha/-/mocha-9.0.0.tgz#67ce848170cb6426f9e84c57e38376dc9017bab4"
+  integrity sha512-GRGG/q9bIaUkHJB9NL+KZNjDhMBHB30zW3bZW9qOiYr+QChyLjPzswaxFWkI1q6lGlSL28EQYzAi2vKWNkPx+g==
   dependencies:
     "@ungap/promise-all-settled" "1.1.2"
     ansi-colors "4.1.1"
@@ -2537,20 +2563,20 @@ mocha@^8.3.0:
     diff "5.0.0"
     escape-string-regexp "4.0.0"
     find-up "5.0.0"
-    glob "7.1.6"
+    glob "7.1.7"
     growl "1.10.5"
     he "1.2.0"
-    js-yaml "4.0.0"
-    log-symbols "4.0.0"
+    js-yaml "4.1.0"
+    log-symbols "4.1.0"
     minimatch "3.0.4"
     ms "2.1.3"
-    nanoid "3.1.20"
+    nanoid "3.1.23"
     serialize-javascript "5.0.1"
     strip-json-comments "3.1.1"
     supports-color "8.1.1"
     which "2.0.2"
     wide-align "1.1.3"
-    workerpool "6.1.0"
+    workerpool "6.1.4"
     yargs "16.2.0"
     yargs-parser "20.2.4"
     yargs-unparser "2.0.0"
@@ -2644,10 +2670,10 @@ nan@^2.13.2:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.2.tgz#f5376400695168f4cc694ac9393d0c9585eeea19"
   integrity sha512-M2ufzIiINKCuDfBSAUr1vWQ+vuVcA9kqx8JJUsbQi6yf1uGRyb7HfpdfUr5qLXf3B/t8dPvcjhKMmlfnP47EzQ==
 
-nanoid@3.1.20:
-  version "3.1.20"
-  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.20.tgz#badc263c6b1dcf14b71efaa85f6ab4c1d6cfc788"
-  integrity sha512-a1cQNyczgKbLX9jwbS/+d7W8fX/RfgYR7lVWwWOGIPNgK2m0MWvrGF6/m4kk6U3QcFMnZf3RIhL0v2Jgh/0Uxw==
+nanoid@3.1.23:
+  version "3.1.23"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.23.tgz#f744086ce7c2bc47ee0a8472574d5c78e4183a81"
+  integrity sha512-FiB0kzdP0FFVGDKlRLEQ1BgDzU87dy5NnzjeW9YZNt+/c3+q82EQDUwniSAUxp/F0gFNI1ZhKU1FqYsMuqZVnw==
 
 natural-compare@^1.4.0:
   version "1.4.0"
@@ -4290,10 +4316,10 @@ word-wrap@^1.2.3, word-wrap@~1.2.3:
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
 
-workerpool@6.1.0:
-  version "6.1.0"
-  resolved "https://registry.yarnpkg.com/workerpool/-/workerpool-6.1.0.tgz#a8e038b4c94569596852de7a8ea4228eefdeb37b"
-  integrity sha512-toV7q9rWNYha963Pl/qyeZ6wG+3nnsyvolaNUS8+R5Wtw6qJPTxIlOP1ZSvcGhEJw+l3HMMmtiNo9Gl61G4GVg==
+workerpool@6.1.4:
+  version "6.1.4"
+  resolved "https://registry.yarnpkg.com/workerpool/-/workerpool-6.1.4.tgz#6a972b6df82e38d50248ee2820aa98e2d0ad3090"
+  integrity sha512-jGWPzsUqzkow8HoAvqaPWTUPCrlPJaJ5tY8Iz7n1uCz3tTp6s3CDG0FF1NsX42WNlkRSW6Mr+CDZGnNoSsKa7g==
 
 wrap-ansi@^7.0.0:
   version "7.0.0"