diff --git a/package.json b/package.json
index ac6dcecb..5ad60f7f 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
     "eslint-plugin-html": "^7.1.0",
     "eslint-plugin-promise": "^4.3.1",
     "eslint-plugin-standard": "^5.0.0",
-    "eslint-plugin-vue": "^6.2.2",
+    "eslint-plugin-vue": "^9.20.1",
     "eventsource-polyfill": "^0.9.6",
     "express": "^4.16.3",
     "extract-text-webpack-plugin": "^2.0.0-rc.3",
diff --git a/yarn.lock b/yarn.lock
index 88260858..75b1446a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1082,6 +1082,13 @@
     exec-sh "^0.3.2"
     minimist "^1.2.0"
 
+"@eslint-community/eslint-utils@^4.4.0":
+  version "4.4.0"
+  resolved "https://registry.yarnpkg.com/@eslint-community/eslint-utils/-/eslint-utils-4.4.0.tgz#a23514e8fb9af1269d5f7788aa556798d61c6b59"
+  integrity sha512-1/sA4dwrzBAyeUoQ6oxahHKmrZvsnLCg4RfxW3ZFGGmQkSNQPFNLV9CUEFQP1x9EYXHTo5p6xdhZM1Ne9p/AfA==
+  dependencies:
+    eslint-visitor-keys "^3.3.0"
+
 "@gar/promisify@^1.0.1":
   version "1.1.3"
   resolved "https://registry.yarnpkg.com/@gar/promisify/-/promisify-1.1.3.tgz#555193ab2e3bb3b6adc3d551c9c030d9e860daf6"
@@ -2241,6 +2248,11 @@ acorn-jsx@^5.2.0:
   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-jsx@^5.3.2:
+  version "5.3.2"
+  resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.3.2.tgz#7ed5bb55908b3b2f1bc55c6af1653bada7f07937"
+  integrity sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==
+
 acorn-walk@^6.0.1:
   version "6.2.0"
   resolved "https://registry.yarnpkg.com/acorn-walk/-/acorn-walk-6.2.0.tgz#123cb8f3b84c2171f1f7fb252615b1c78a6b1a8c"
@@ -2281,6 +2293,11 @@ acorn@^8.0.4, acorn@^8.5.0, acorn@^8.7.1:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.8.1.tgz#0a3f9cbecc4ec3bea6f0a80b66ae8dd2da250b73"
   integrity sha512-7zFpHzhnqYKrkYdUjF1HI1bzd0VygEGX8lFk4k5zVMqHEoES+P+7TKI+EvLO9WVMJ8eekdO0aDEK044xTXwPPA==
 
+acorn@^8.9.0:
+  version "8.11.3"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-8.11.3.tgz#71e0b14e13a4ec160724b38fb7b0f233b1b81d7a"
+  integrity sha512-Y9rRfJG5jcKOE0CLisYbojUjIrIEE7AGMzA/Sm4BslANhbS+cDMpgBdcPT91oJ7OuJ9hYJBx59RjbhxVnrF8Xg==
+
 address@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/address/-/address-1.0.3.tgz#b5f50631f8d6cec8bd20c963963afb55e06cbce9"
@@ -5238,7 +5255,7 @@ debug@2.6.9, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
   dependencies:
     ms "2.0.0"
 
-debug@4, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1, debug@^4.3.3:
+debug@4, debug@^4.0.1, debug@^4.1.0, debug@^4.1.1, debug@^4.3.3, debug@^4.3.4:
   version "4.3.4"
   resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.4.tgz#1319f6579357f2338d3337d2cdd4914bb5dcc865"
   integrity sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==
@@ -5925,14 +5942,18 @@ eslint-plugin-standard@^5.0.0:
   resolved "https://registry.yarnpkg.com/eslint-plugin-standard/-/eslint-plugin-standard-5.0.0.tgz#c43f6925d669f177db46f095ea30be95476b1ee4"
   integrity sha512-eSIXPc9wBM4BrniMzJRBm2uoVuXz2EPa+NXPk2+itrVt+r5SbKFERx/IgrK/HmfjddyKVz2f+j+7gBRvu19xLg==
 
-eslint-plugin-vue@^6.2.2:
-  version "6.2.2"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-vue/-/eslint-plugin-vue-6.2.2.tgz#27fecd9a3a24789b0f111ecdd540a9e56198e0fe"
-  integrity sha512-Nhc+oVAHm0uz/PkJAWscwIT4ijTrK5fqNqz9QB1D35SbbuMG1uB6Yr5AJpvPSWg+WOw7nYNswerYh0kOk64gqQ==
+eslint-plugin-vue@^9.20.1:
+  version "9.20.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-vue/-/eslint-plugin-vue-9.20.1.tgz#7ed78846898574b2cd26939f28b0b87798a7b528"
+  integrity sha512-GyCs8K3lkEvoyC1VV97GJhP1SvqsKCiWGHnbn0gVUYiUhaH2+nB+Dv1uekv1THFMPbBfYxukrzQdltw950k+LQ==
   dependencies:
+    "@eslint-community/eslint-utils" "^4.4.0"
     natural-compare "^1.4.0"
-    semver "^5.6.0"
-    vue-eslint-parser "^7.0.0"
+    nth-check "^2.1.1"
+    postcss-selector-parser "^6.0.13"
+    semver "^7.5.4"
+    vue-eslint-parser "^9.4.0"
+    xml-name-validator "^4.0.0"
 
 eslint-scope@5.1.1:
   version "5.1.1"
@@ -5958,6 +5979,14 @@ eslint-scope@^5.0.0:
     esrecurse "^4.1.0"
     estraverse "^4.1.1"
 
+eslint-scope@^7.1.1:
+  version "7.2.2"
+  resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-7.2.2.tgz#deb4f92563390f32006894af62a22dba1c46423f"
+  integrity sha512-dOt21O7lTMhDM+X9mB4GX+DZrZtCUJPL/wlcTqxyrx5IvO0IYtILdtrQGQp+8n5S0gwSVmOf9NQrjMOgfQZlIg==
+  dependencies:
+    esrecurse "^4.3.0"
+    estraverse "^5.2.0"
+
 eslint-utils@^1.4.3:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/eslint-utils/-/eslint-utils-1.4.3.tgz#74fec7c54d0776b6f67e0251040b5806564e981f"
@@ -5970,6 +5999,11 @@ eslint-visitor-keys@^1.0.0, eslint-visitor-keys@^1.1.0:
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.1.0.tgz#e2a82cea84ff246ad6fb57f9bde5b46621459ec2"
   integrity sha512-8y9YjtM1JBJU/A9Kc+SbaOV4y29sSWckBwMHa+FGtVj5gN/sbnKDf6xJUl+8g7FAij9LVaP8C24DUiH/f/2Z9A==
 
+eslint-visitor-keys@^3.3.0, eslint-visitor-keys@^3.4.1:
+  version "3.4.3"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-3.4.3.tgz#0cd72fe8550e3c2eae156a96a4dddcd1c8ac5800"
+  integrity sha512-wpc+LXeiyiisxPlEkUzU6svyS1frIO3Mgxj1fdy7Pm8Ygzguax2N3Fa/D/ag1WqbOprdI+uY6wMUl8/a2G+iag==
+
 eslint@^6.8.0:
   version "6.8.0"
   resolved "https://registry.yarnpkg.com/eslint/-/eslint-6.8.0.tgz#62262d6729739f9275723824302fb227c8c93ffb"
@@ -6013,7 +6047,7 @@ eslint@^6.8.0:
     text-table "^0.2.0"
     v8-compile-cache "^2.0.3"
 
-espree@^6.1.2, espree@^6.2.1:
+espree@^6.1.2:
   version "6.2.1"
   resolved "https://registry.yarnpkg.com/espree/-/espree-6.2.1.tgz#77fc72e1fd744a2052c20f38a5b575832e82734a"
   integrity sha512-ysCxRQY3WaXJz9tdbWOwuWr5Y/XrPTGX9Kiz3yoUXwW0VZ4w30HTkQLaGx/+ttFjF8i+ACbArnB4ce68a9m5hw==
@@ -6022,6 +6056,15 @@ espree@^6.1.2, espree@^6.2.1:
     acorn-jsx "^5.2.0"
     eslint-visitor-keys "^1.1.0"
 
+espree@^9.3.1:
+  version "9.6.1"
+  resolved "https://registry.yarnpkg.com/espree/-/espree-9.6.1.tgz#a2a17b8e434690a5432f2f8018ce71d331a48c6f"
+  integrity sha512-oruZaFkjorTpF32kDSI5/75ViwGeZginGGy2NoOSg3Q9bnwlnmDm4HLnkl0RE3n+njDXR037aY1+x58Z/zFdwQ==
+  dependencies:
+    acorn "^8.9.0"
+    acorn-jsx "^5.3.2"
+    eslint-visitor-keys "^3.4.1"
+
 esprima@^2.6.0:
   version "2.7.3"
   resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
@@ -9067,7 +9110,7 @@ lodash.uniq@^4.5.0:
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-lodash@4.x, lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.20, lodash@^4.17.3, lodash@^4.17.4, lodash@~4.17.10:
+lodash@4.x, lodash@^4.13.1, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.20, lodash@^4.17.21, lodash@^4.17.3, lodash@^4.17.4, lodash@~4.17.10:
   version "4.17.21"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
   integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
@@ -10119,6 +10162,13 @@ nth-check@^1.0.1, nth-check@~1.0.1:
   dependencies:
     boolbase "~1.0.0"
 
+nth-check@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-2.1.1.tgz#c9eab428effce36cd6b92c924bdb000ef1f1ed1d"
+  integrity sha512-lqjrjmaOoAnWfMmBPL+XNnynZh2+swxiX3WUE0s4yEHI6m+AwrK2UZOimIRl3X/4QctVqS8AiZjFqyOGrMXb/w==
+  dependencies:
+    boolbase "^1.0.0"
+
 num2fraction@^1.2.2:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/num2fraction/-/num2fraction-1.2.2.tgz#6f682b6a027a4e9ddfa4564cd2589d1d4e669ede"
@@ -11332,10 +11382,10 @@ postcss-selector-parser@^3.0.0, postcss-selector-parser@^3.1.1:
     indexes-of "^1.0.1"
     uniq "^1.0.1"
 
-postcss-selector-parser@^6.0.2:
-  version "6.0.10"
-  resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-6.0.10.tgz#79b61e2c0d1bfc2602d549e11d0876256f8df88d"
-  integrity sha512-IQ7TZdoaqbT+LCpShg46jnZVlhWD2w6iQYAcYXfHARZ7X1t/UGhhceQDs5X0cGqKvYlHNOuv7Oa1xmb0oQuA3w==
+postcss-selector-parser@^6.0.13, postcss-selector-parser@^6.0.2:
+  version "6.0.15"
+  resolved "https://registry.yarnpkg.com/postcss-selector-parser/-/postcss-selector-parser-6.0.15.tgz#11cc2b21eebc0b99ea374ffb9887174855a01535"
+  integrity sha512-rEYkQOMUCEMhsKbK66tbEU9QVIxbhN18YiniAwA7XQYTVBqrBy+P2p5JcdqsHgKM2zWylp8d7J6eszocfds5Sw==
   dependencies:
     cssesc "^3.0.0"
     util-deprecate "^1.0.2"
@@ -12518,10 +12568,10 @@ semver@^6.0.0, semver@^6.1.0, semver@^6.1.1, semver@^6.1.2, semver@^6.2.0, semve
   resolved "https://registry.yarnpkg.com/semver/-/semver-6.3.0.tgz#ee0a64c8af5e8ceea67687b133761e1becbd1d3d"
   integrity sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==
 
-semver@^7.3.4, semver@^7.3.5, semver@^7.3.8:
-  version "7.3.8"
-  resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.8.tgz#07a78feafb3f7b32347d725e33de7e2a2df67798"
-  integrity sha512-NB1ctGL5rlHrPJtFDVIVzTyQylMLu9N9VICA6HSFJo8MCGVTMW6gfpicwKmmK/dAjTOrqu5l63JJOpDSrAis3A==
+semver@^7.3.4, semver@^7.3.5, semver@^7.3.6, semver@^7.3.8, semver@^7.5.4:
+  version "7.5.4"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-7.5.4.tgz#483986ec4ed38e1c6c48c34894a9182dbff68a6e"
+  integrity sha512-1bCSESV6Pv+i21Hvpxp3Dx+pSD8lIPt8uVjRrxAUt/nbswYc+tK6Y2btiULjd4+fnq15PX+nqQDC7Oft7WkwcA==
   dependencies:
     lru-cache "^6.0.0"
 
@@ -14131,17 +14181,18 @@ void-elements@^2.0.1:
   resolved "https://registry.yarnpkg.com/void-elements/-/void-elements-2.0.1.tgz#c066afb582bb1cb4128d60ea92392e94d5e9dbec"
   integrity sha1-wGavtYK7HLQSjWDqkjkulNXp2+w=
 
-vue-eslint-parser@^7.0.0:
-  version "7.6.0"
-  resolved "https://registry.yarnpkg.com/vue-eslint-parser/-/vue-eslint-parser-7.6.0.tgz#01ea1a2932f581ff244336565d712801f8f72561"
-  integrity sha512-QXxqH8ZevBrtiZMZK0LpwaMfevQi9UL7lY6Kcp+ogWHC88AuwUPwwCIzkOUc1LR4XsYAt/F9yHXAB/QoD17QXA==
+vue-eslint-parser@^9.4.0:
+  version "9.4.0"
+  resolved "https://registry.yarnpkg.com/vue-eslint-parser/-/vue-eslint-parser-9.4.0.tgz#dfd22302e2992fe45748a76553cef7afa5bdde27"
+  integrity sha512-7KsNBb6gHFA75BtneJsoK/dbZ281whUIwFYdQxA68QrCrGMXYzUMbPDHGcOQ0OocIVKrWSKWXZ4mL7tonCXoUw==
   dependencies:
-    debug "^4.1.1"
-    eslint-scope "^5.0.0"
-    eslint-visitor-keys "^1.1.0"
-    espree "^6.2.1"
+    debug "^4.3.4"
+    eslint-scope "^7.1.1"
+    eslint-visitor-keys "^3.3.0"
+    espree "^9.3.1"
     esquery "^1.4.0"
-    lodash "^4.17.15"
+    lodash "^4.17.21"
+    semver "^7.3.6"
 
 vue-hot-reload-api@^2.2.0, vue-hot-reload-api@^2.3.0, vue-hot-reload-api@^2.3.4:
   version "2.3.4"
@@ -14798,6 +14849,11 @@ xml-name-validator@^3.0.0:
   resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-3.0.0.tgz#6ae73e06de4d8c6e47f9fb181f78d648ad457c6a"
   integrity sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==
 
+xml-name-validator@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-4.0.0.tgz#79a006e2e63149a8600f15430f0a4725d1524835"
+  integrity sha512-ICP2e+jsHvAj2E2lIHxa5tjXRlKDJo4IdvPvCXbXQGdzSfmSpNVyIKMvoZHjDY9DP0zV17iI85o90vRFXNccRw==
+
 xmlchars@^2.1.1:
   version "2.2.0"
   resolved "https://registry.yarnpkg.com/xmlchars/-/xmlchars-2.2.0.tgz#060fe1bcb7f9c76fe2a17db86a9bc3ab894210cb"