diff --git a/package.json b/package.json
index fc663fc..e03946c 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "codecov": "3.8.1",
     "coffeescript": "2.5.1",
     "concat-stream": "2.0.0",
-    "eslint": "7.12.1",
+    "eslint": "7.22.0",
     "eslint-config-standard": "16.0.2",
     "eslint-plugin-html": "6.1.2",
     "eslint-plugin-import": "2.22.1",
diff --git a/yarn.lock b/yarn.lock
index b285436..895df1a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,13 @@
 # yarn lockfile v1
 
 
+"@babel/code-frame@7.12.11":
+  version "7.12.11"
+  resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.12.11.tgz#f4ad435aa263db935b8f10f2c552d23fb716a63f"
+  integrity sha512-Zt1yodBx1UcyiePMSkWnU4hPqhwq7hGi2nFL1LeA3EUl+q2LQx16MISgJ0+z7dnmgvP9QtIleuETGOiOH1RcIw==
+  dependencies:
+    "@babel/highlight" "^7.10.4"
+
 "@babel/code-frame@^7.0.0", "@babel/code-frame@^7.5.5":
   version "7.5.5"
   resolved "https://registry.yarnpkg.com/@babel/code-frame/-/code-frame-7.5.5.tgz#bc0782f6d69f7b7d49531219699b988f669a8f9d"
@@ -240,6 +247,21 @@
     minimatch "^3.0.4"
     strip-json-comments "^3.1.1"
 
+"@eslint/eslintrc@^0.4.0":
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/@eslint/eslintrc/-/eslintrc-0.4.0.tgz#99cc0a0584d72f1df38b900fb062ba995f395547"
+  integrity sha512-2ZPCc+uNbjV5ERJr+aKSPRwZgKd2z11x0EgLvb1PURmUrn9QNRXFqje0Ldq454PfAVyaJYyrDvvIKSFP4NnBog==
+  dependencies:
+    ajv "^6.12.4"
+    debug "^4.1.1"
+    espree "^7.3.0"
+    globals "^12.1.0"
+    ignore "^4.0.6"
+    import-fresh "^3.2.1"
+    js-yaml "^3.13.1"
+    minimatch "^3.0.4"
+    strip-json-comments "^3.1.1"
+
 "@hutson/npm-deploy-git-tag@6.0.0":
   version "6.0.0"
   resolved "https://registry.yarnpkg.com/@hutson/npm-deploy-git-tag/-/npm-deploy-git-tag-6.0.0.tgz#5ddec91daa158593914e70db527d5ade3e499549"
@@ -302,6 +324,11 @@ acorn-jsx@^5.2.0:
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.2.0.tgz#4c66069173d6fdd68ed85239fc256226182b2ebe"
   integrity sha512-HiUX/+K2YpkpJ+SzBffkM/AQ2YE03S0U1kjTLVpoJdhZMOWy8qvXVN9JdLqv2QsaQ6MPYQIuNmwD8zOiYUofLQ==
 
+acorn-jsx@^5.3.1:
+  version "5.3.1"
+  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.3.1.tgz#fc8661e11b7ac1539c47dbfea2e72b3af34d267b"
+  integrity sha512-K0Ptm/47OKfQRpNQ2J/oIN/3QYiK6FwW+eJbILhsdxh2WTLdl+30o8aGdTbm5JbffpFFAg/g+zi1E+jvJha5ng==
+
 acorn@^7.4.0:
   version "7.4.0"
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.4.0.tgz#e1ad486e6c54501634c6c397c5c121daa383607c"
@@ -347,6 +374,16 @@ ajv@^6.12.4:
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
 
+ajv@^7.0.2:
+  version "7.2.1"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-7.2.1.tgz#a5ac226171912447683524fa2f1248fcf8bac83d"
+  integrity sha512-+nu0HDv7kNSOua9apAVc979qd932rrZeb3WOvoiD31A/p1mIE5/9bN2027pE2rOPYEdS3UHzsvof4hY+lM9/WQ==
+  dependencies:
+    fast-deep-equal "^3.1.1"
+    json-schema-traverse "^1.0.0"
+    require-from-string "^2.0.2"
+    uri-js "^4.2.2"
+
 ansi-colors@^3.2.1:
   version "3.2.4"
   resolved "https://registry.yarnpkg.com/ansi-colors/-/ansi-colors-3.2.4.tgz#e3a3da4bfbae6c86a9c285625de124a234026fbf"
@@ -460,6 +497,11 @@ astral-regex@^1.0.0:
   resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-1.0.0.tgz#6c8c3fb827dd43ee3918f27b82782ab7658a6fd9"
   integrity sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==
 
+astral-regex@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/astral-regex/-/astral-regex-2.0.0.tgz#483143c567aeed4785759c0865786dc77d7d2e31"
+  integrity sha512-Z7tMw1ytTXt5jqMcOP+OQteU1VuNK9Y02uuJtKQ1Sv69jXQKKg5cibLwGJow8yzZP+eAc18EmLGPal0bp36rvQ==
+
 babel-eslint@10.1.0:
   version "10.1.0"
   resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-10.1.0.tgz#6968e568a910b78fb3779cdd8b6ac2f479943232"
@@ -1083,13 +1125,13 @@ eslint-visitor-keys@^2.0.0:
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-2.0.0.tgz#21fdc8fbcd9c795cc0321f0563702095751511a8"
   integrity sha512-QudtT6av5WXels9WjIM7qz1XD1cWGvX4gGXvp/zBn9nXG02D0utdU3Em2m/QjTnrsk6bBjmCygl3rmj118msQQ==
 
-eslint@7.12.1:
-  version "7.12.1"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-7.12.1.tgz#bd9a81fa67a6cfd51656cdb88812ce49ccec5801"
-  integrity sha512-HlMTEdr/LicJfN08LB3nM1rRYliDXOmfoO4vj39xN6BLpFzF00hbwBoqHk8UcJ2M/3nlARZWy/mslvGEuZFvsg==
+eslint@7.22.0:
+  version "7.22.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-7.22.0.tgz#07ecc61052fec63661a2cab6bd507127c07adc6f"
+  integrity sha512-3VawOtjSJUQiiqac8MQc+w457iGLfuNGLFn8JmF051tTKbh5/x/0vlcEj8OgDCaw7Ysa2Jn8paGshV7x2abKXg==
   dependencies:
-    "@babel/code-frame" "^7.0.0"
-    "@eslint/eslintrc" "^0.2.1"
+    "@babel/code-frame" "7.12.11"
+    "@eslint/eslintrc" "^0.4.0"
     ajv "^6.10.0"
     chalk "^4.0.0"
     cross-spawn "^7.0.2"
@@ -1099,13 +1141,13 @@ eslint@7.12.1:
     eslint-scope "^5.1.1"
     eslint-utils "^2.1.0"
     eslint-visitor-keys "^2.0.0"
-    espree "^7.3.0"
-    esquery "^1.2.0"
+    espree "^7.3.1"
+    esquery "^1.4.0"
     esutils "^2.0.2"
-    file-entry-cache "^5.0.1"
+    file-entry-cache "^6.0.1"
     functional-red-black-tree "^1.0.1"
     glob-parent "^5.0.0"
-    globals "^12.1.0"
+    globals "^13.6.0"
     ignore "^4.0.6"
     import-fresh "^3.0.0"
     imurmurhash "^0.1.4"
@@ -1113,7 +1155,7 @@ eslint@7.12.1:
     js-yaml "^3.13.1"
     json-stable-stringify-without-jsonify "^1.0.1"
     levn "^0.4.1"
-    lodash "^4.17.19"
+    lodash "^4.17.21"
     minimatch "^3.0.4"
     natural-compare "^1.4.0"
     optionator "^0.9.1"
@@ -1122,7 +1164,7 @@ eslint@7.12.1:
     semver "^7.2.1"
     strip-ansi "^6.0.0"
     strip-json-comments "^3.1.0"
-    table "^5.2.3"
+    table "^6.0.4"
     text-table "^0.2.0"
     v8-compile-cache "^2.0.3"
 
@@ -1178,6 +1220,15 @@ espree@^7.3.0:
     acorn-jsx "^5.2.0"
     eslint-visitor-keys "^1.3.0"
 
+espree@^7.3.1:
+  version "7.3.1"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-7.3.1.tgz#f2df330b752c6f55019f8bd89b7660039c1bbbb6"
+  integrity sha512-v3JCNCE64umkFpmkFGqzVKsOT0tN1Zr+ueqLZfpV1Ob8e+CEgPWa+OxCoGH3tnhimMKIaBm4m/vaRpJ/krRz2g==
+  dependencies:
+    acorn "^7.4.0"
+    acorn-jsx "^5.3.1"
+    eslint-visitor-keys "^1.3.0"
+
 esprima@^4.0.0:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
@@ -1190,6 +1241,13 @@ esquery@^1.2.0:
   dependencies:
     estraverse "^5.1.0"
 
+esquery@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/esquery/-/esquery-1.4.0.tgz#2148ffc38b82e8c7057dfed48425b3e61f0f24a5"
+  integrity sha512-cCDispWt5vHHtwMY2YrAQ4ibFkAL8RbH5YGBnZBc90MolvvfkkQcJro/aZiAQUlQ3qgrYS6D6v8Gc5G5CQsc9w==
+  dependencies:
+    estraverse "^5.1.0"
+
 esrecurse@^4.3.0:
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/esrecurse/-/esrecurse-4.3.0.tgz#7ad7964d679abb28bee72cec63758b1c5d2c9921"
@@ -1252,6 +1310,13 @@ file-entry-cache@^5.0.1:
   dependencies:
     flat-cache "^2.0.1"
 
+file-entry-cache@^6.0.1:
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/file-entry-cache/-/file-entry-cache-6.0.1.tgz#211b2dd9659cb0394b073e7323ac3c933d522027"
+  integrity sha512-7Gps/XWymbLk2QLYK4NzpMOrYjMhdIxXuIvy2QBsLE6ljuodKvdkWs/cpyJJ3CVIVpH0Oi1Hvg1ovbMzLdFBBg==
+  dependencies:
+    flat-cache "^3.0.4"
+
 find-cache-dir@^3.2.0:
   version "3.2.0"
   resolved "https://registry.yarnpkg.com/find-cache-dir/-/find-cache-dir-3.2.0.tgz#e7fe44c1abc1299f516146e563108fd1006c1874"
@@ -1292,11 +1357,24 @@ flat-cache@^2.0.1:
     rimraf "2.6.3"
     write "1.0.3"
 
+flat-cache@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/flat-cache/-/flat-cache-3.0.4.tgz#61b0338302b2fe9f957dcc32fc2a87f1c3048b11"
+  integrity sha512-dm9s5Pw7Jc0GvMYbshN6zchCA9RgQlzzEZX3vylR9IqFfS8XciblUXOKfW6SiuJ0e13eDYZoZV5wdrev7P3Nwg==
+  dependencies:
+    flatted "^3.1.0"
+    rimraf "^3.0.2"
+
 flatted@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/flatted/-/flatted-2.0.0.tgz#55122b6536ea496b4b44893ee2608141d10d9916"
   integrity sha512-R+H8IZclI8AAkSBRQJLVOsxwAoHd6WC40b4QTNWIjzAa6BXOBfQcM587MXDTVPeYaopFNWHUFLx7eNmHDSxMWg==
 
+flatted@^3.1.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/flatted/-/flatted-3.1.1.tgz#c4b489e80096d9df1dfc97c79871aea7c617c469"
+  integrity sha512-zAoAQiudy+r5SvnSw3KJy5os/oRJYHzrzja/tBDqrZtNhUw8bt6y8OBzMWcjWr+8liV8Eb6yOhw8WZ7VFZ5ZzA==
+
 for-each@~0.3.3:
   version "0.3.3"
   resolved "https://registry.yarnpkg.com/for-each/-/for-each-0.3.3.tgz#69b447e88a0a5d32c3e7084f3f1710034b21376e"
@@ -1386,6 +1464,13 @@ globals@^12.1.0:
   dependencies:
     type-fest "^0.8.1"
 
+globals@^13.6.0:
+  version "13.6.0"
+  resolved "https://registry.yarnpkg.com/globals/-/globals-13.6.0.tgz#d77138e53738567bb96a3916ff6f6b487af20ef7"
+  integrity sha512-YFKCX0SiPg7l5oKYCJ2zZGxcXprVXHcSnVuvzrT3oSENQonVLqM5pf9fN5dLGZGyCjhw8TN8Btwe/jKnZ0pjvQ==
+  dependencies:
+    type-fest "^0.20.2"
+
 graceful-fs@^4.1.11, graceful-fs@^4.1.2:
   version "4.1.15"
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.1.15.tgz#ffb703e1066e8a0eeaa4c8b80ba9253eeefbfb00"
@@ -1839,6 +1924,11 @@ json-schema-traverse@^0.4.1:
   resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz#69f6a87d9513ab8bb8fe63bdb0979c448e684660"
   integrity sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==
 
+json-schema-traverse@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz#ae7bcb3656ab77a73ba5c49bf654f38e6b6860e2"
+  integrity sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==
+
 json-stable-stringify-without-jsonify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz#9db7b59496ad3f3cfef30a75142d2d930ad72651"
@@ -1951,6 +2041,11 @@ lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.13, lodash@^4.17.19:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.19.tgz#e48ddedbe30b3321783c5b4301fbd353bc1e4a4b"
   integrity sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==
 
+lodash@^4.17.20, lodash@^4.17.21:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
+
 loose-envify@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
@@ -2617,6 +2712,11 @@ require-directory@^2.1.1:
   resolved "https://registry.yarnpkg.com/require-directory/-/require-directory-2.1.1.tgz#8c64ad5fd30dab1c976e2344ffe7f792a6a6df42"
   integrity sha1-jGStX9MNqxyXbiNE/+f3kqam30I=
 
+require-from-string@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/require-from-string/-/require-from-string-2.0.2.tgz#89a7fdd938261267318eafe14f9c32e598c36909"
+  integrity sha512-Xf0nWe6RseziFMu+Ap9biiUbmplq6S9/p+7w7YXP/JBHhrUDDUhwa+vANyubuqfZWTveU//DYVGsDG7RKL/vEw==
+
 require-main-filename@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/require-main-filename/-/require-main-filename-2.0.0.tgz#d0b329ecc7cc0f61649f62215be69af54aa8989b"
@@ -2668,6 +2768,13 @@ rimraf@^3.0.0:
   dependencies:
     glob "^7.1.3"
 
+rimraf@^3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-3.0.2.tgz#f1a5402ba6220ad52cc1282bac1ae3aa49fd061a"
+  integrity sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==
+  dependencies:
+    glob "^7.1.3"
+
 safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
@@ -2741,6 +2848,15 @@ slice-ansi@^2.1.0:
     astral-regex "^1.0.0"
     is-fullwidth-code-point "^2.0.0"
 
+slice-ansi@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-4.0.0.tgz#500e8dd0fd55b05815086255b3195adf2a45fe6b"
+  integrity sha512-qMCMfhY040cVHT43K9BFygqYbUPFZKHOg7K73mtTWJRb8pyP3fzf4Ixd5SzdEJQ6MRUg/WBnOLxghZtKKurENQ==
+  dependencies:
+    ansi-styles "^4.0.0"
+    astral-regex "^2.0.0"
+    is-fullwidth-code-point "^3.0.0"
+
 sort-keys@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/sort-keys/-/sort-keys-2.0.0.tgz#658535584861ec97d730d6cf41822e1f56684128"
@@ -3054,6 +3170,16 @@ table@^5.2.3:
     slice-ansi "^2.1.0"
     string-width "^3.0.0"
 
+table@^6.0.4:
+  version "6.0.7"
+  resolved "https://registry.yarnpkg.com/table/-/table-6.0.7.tgz#e45897ffbcc1bcf9e8a87bf420f2c9e5a7a52a34"
+  integrity sha512-rxZevLGTUzWna/qBLObOe16kB2RTnnbhciwgPbMMlazz1yZGVEgnZK762xyVdVznhqxrfCeBMmMkgOOaPwjH7g==
+  dependencies:
+    ajv "^7.0.2"
+    lodash "^4.17.20"
+    slice-ansi "^4.0.0"
+    string-width "^4.2.0"
+
 tap-nyc@1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/tap-nyc/-/tap-nyc-1.0.3.tgz#5b608052ec0fc594de8e0c5b765fa4ea2ff754f8"
@@ -3233,6 +3359,11 @@ type-fest@^0.13.1:
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.13.1.tgz#0172cb5bce80b0bd542ea348db50c7e21834d934"
   integrity sha512-34R7HTnG0XIJcBSn5XhDd7nNFPRcXYRZrBB2O2jdKqYODldSzBAqzsWoZYYvduky73toYS/ESqxPvkDf/F0XMg==
 
+type-fest@^0.20.2:
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.20.2.tgz#1bf207f4b28f91583666cb5fbd327887301cd5f4"
+  integrity sha512-Ne+eE4r0/iWnpAxD852z3A+N0Bt5RN//NjJwRd2VFHEmrywxf5vsZlh4R6lixl6B+wz/8d+maTSAkN1FIkI3LQ==
+
 type-fest@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/type-fest/-/type-fest-0.3.1.tgz#63d00d204e059474fe5e1b7c011112bbd1dc29e1"