diff --git a/package.json b/package.json
index ba32d22..5fddb46 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "express": "^4.15.3",
     "fast-list": "^1.0.3",
     "helmet": "^3.6.1",
-    "socket.io": "^2.4.0"
+    "socket.io": "^4.6.1"
   },
   "scripts": {
     "start": "node server.js"
diff --git a/yarn.lock b/yarn.lock
index 7248595..13f1a2f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,48 +2,39 @@
 # yarn lockfile v1
 
 
-accepts@~1.3.3:
-  version "1.3.3"
-  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.3.tgz#c3ca7434938648c3e0d9c1e328dd68b622c284ca"
+"@socket.io/component-emitter@~3.1.0":
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/@socket.io/component-emitter/-/component-emitter-3.1.0.tgz#96116f2a912e0c02817345b3c10751069920d553"
+
+"@types/cookie@^0.4.1":
+  version "0.4.1"
+  resolved "https://registry.yarnpkg.com/@types/cookie/-/cookie-0.4.1.tgz#bfd02c1f2224567676c1545199f87c3a861d878d"
+
+"@types/cors@^2.8.12":
+  version "2.8.13"
+  resolved "https://registry.yarnpkg.com/@types/cors/-/cors-2.8.13.tgz#b8ade22ba455a1b8cb3b5d3f35910fd204f84f94"
   dependencies:
-    mime-types "~2.1.11"
-    negotiator "0.6.1"
+    "@types/node" "*"
 
-accepts@~1.3.4:
+"@types/node@*", "@types/node@>=10.0.0":
+  version "18.14.0"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-18.14.0.tgz#94c47b9217bbac49d4a67a967fdcdeed89ebb7d0"
+
+accepts@~1.3.3, accepts@~1.3.4:
   version "1.3.8"
   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.8.tgz#0bf0be125b67014adcb0b0921e62db7bffe16b2e"
   dependencies:
     mime-types "~2.1.34"
     negotiator "0.6.3"
 
-after@0.8.2:
-  version "0.8.2"
-  resolved "https://registry.yarnpkg.com/after/-/after-0.8.2.tgz#fedb394f9f0e02aa9768e702bda23b505fae7e1f"
-
 array-flatten@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
 
-arraybuffer.slice@~0.0.7:
-  version "0.0.7"
-  resolved "https://registry.yarnpkg.com/arraybuffer.slice/-/arraybuffer.slice-0.0.7.tgz#3bbc4275dd584cc1b10809b89d4e8b63a69e7675"
-
-backo2@1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/backo2/-/backo2-1.0.2.tgz#31ab1ac8b129363463e35b3ebb69f4dfcfba7947"
-
-base64-arraybuffer@0.1.4:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/base64-arraybuffer/-/base64-arraybuffer-0.1.4.tgz#9818c79e059b1355f97e0428a017c838e90ba812"
-
-base64id@2.0.0:
+base64id@2.0.0, base64id@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/base64id/-/base64id-2.0.0.tgz#2770ac6bc47d312af97a8bf9a634342e0cd25cb6"
 
-blob@0.0.5:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/blob/-/blob-0.0.5.tgz#d680eeef25f8cd91ad533f5b01eed48e64caf683"
-
 body-parser@^1.17.2:
   version "1.17.2"
   resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.17.2.tgz#f8892abc8f9e627d42aedafbca66bf5ab99104ee"
@@ -67,22 +58,6 @@ camelize@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/camelize/-/camelize-1.0.0.tgz#164a5483e630fa4321e5af07020e531831b2609b"
 
-component-bind@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/component-bind/-/component-bind-1.0.0.tgz#00c608ab7dcd93897c0009651b1d3a8e1e73bbd1"
-
-component-emitter@1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.2.1.tgz#137918d6d78283f7df7a6b7c5a63e140e69425e6"
-
-component-emitter@~1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/component-emitter/-/component-emitter-1.3.0.tgz#16e4070fba8ae29b679f2215853ee181ab2eabc0"
-
-component-inherit@0.0.3:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/component-inherit/-/component-inherit-0.0.3.tgz#645fc4adf58b72b649d5cae65135619db26ff143"
-
 connect@3.6.2:
   version "3.6.2"
   resolved "https://registry.yarnpkg.com/connect/-/connect-3.6.2.tgz#694e8d20681bfe490282c8ab886be98f09f42fe7"
@@ -122,6 +97,13 @@ core-util-is@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
+cors@~2.8.5:
+  version "2.8.5"
+  resolved "https://registry.yarnpkg.com/cors/-/cors-2.8.5.tgz#eac11da51592dd86b9f06f6e7ac293b3df875d29"
+  dependencies:
+    object-assign "^4"
+    vary "^1"
+
 dasherize@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/dasherize/-/dasherize-2.0.0.tgz#6d809c9cd0cf7bb8952d80fc84fa13d47ddb1308"
@@ -130,29 +112,17 @@ dashify@^0.2.0:
   version "0.2.2"
   resolved "https://registry.yarnpkg.com/dashify/-/dashify-0.2.2.tgz#6a07415a01c91faf4a32e38d9dfba71f61cb20fe"
 
-debug@2.3.3:
-  version "2.3.3"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.3.3.tgz#40c453e67e6e13c901ddec317af8986cda9eff8c"
-  dependencies:
-    ms "0.7.2"
-
 debug@2.6.7:
   version "2.6.7"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.7.tgz#92bad1f6d05bbb6bba22cca88bcd0ec894c2861e"
   dependencies:
     ms "2.0.0"
 
-debug@~3.1.0:
-  version "3.1.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-3.1.0.tgz#5bb5a0672628b64149566ba16819e61518c67261"
-  dependencies:
-    ms "2.0.0"
-
-debug@~4.1.0:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-4.1.1.tgz#3b72260255109c6b589cee050f1d516139664791"
+debug@~4.3.1, debug@~4.3.2:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.4.tgz#1319f6579357f2338d3337d2cdd4914bb5dcc865"
   dependencies:
-    ms "^2.1.1"
+    ms "2.1.2"
 
 depd@1.1.0, depd@~1.1.0:
   version "1.1.0"
@@ -178,42 +148,24 @@ encodeurl@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.1.tgz#79e3d58655346909fe6f0f45a5de68103b294d20"
 
-engine.io-client@~3.5.0:
-  version "3.5.2"
-  resolved "https://registry.yarnpkg.com/engine.io-client/-/engine.io-client-3.5.2.tgz#0ef473621294004e9ceebe73cef0af9e36f2f5fa"
-  dependencies:
-    component-emitter "~1.3.0"
-    component-inherit "0.0.3"
-    debug "~3.1.0"
-    engine.io-parser "~2.2.0"
-    has-cors "1.1.0"
-    indexof "0.0.1"
-    parseqs "0.0.6"
-    parseuri "0.0.6"
-    ws "~7.4.2"
-    xmlhttprequest-ssl "~1.6.2"
-    yeast "0.1.2"
-
-engine.io-parser@~2.2.0:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-2.2.1.tgz#57ce5611d9370ee94f99641b589f94c97e4f5da7"
-  dependencies:
-    after "0.8.2"
-    arraybuffer.slice "~0.0.7"
-    base64-arraybuffer "0.1.4"
-    blob "0.0.5"
-    has-binary2 "~1.0.2"
-
-engine.io@~3.5.0:
-  version "3.5.0"
-  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-3.5.0.tgz#9d6b985c8a39b1fe87cd91eb014de0552259821b"
+engine.io-parser@~5.0.3:
+  version "5.0.6"
+  resolved "https://registry.yarnpkg.com/engine.io-parser/-/engine.io-parser-5.0.6.tgz#7811244af173e157295dec9b2718dfe42a64ef45"
+
+engine.io@~6.4.1:
+  version "6.4.1"
+  resolved "https://registry.yarnpkg.com/engine.io/-/engine.io-6.4.1.tgz#8056b4526a88e779f9c280d820422d4e3eeaaae5"
   dependencies:
+    "@types/cookie" "^0.4.1"
+    "@types/cors" "^2.8.12"
+    "@types/node" ">=10.0.0"
     accepts "~1.3.4"
     base64id "2.0.0"
     cookie "~0.4.1"
-    debug "~4.1.0"
-    engine.io-parser "~2.2.0"
-    ws "~7.4.2"
+    cors "~2.8.5"
+    debug "~4.3.1"
+    engine.io-parser "~5.0.3"
+    ws "~8.11.0"
 
 escape-html@~1.0.3:
   version "1.0.3"
@@ -288,16 +240,6 @@ fresh@0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.5.0.tgz#f474ca5e6a9246d6fd8e0953cfa9b9c805afa78e"
 
-has-binary2@~1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/has-binary2/-/has-binary2-1.0.2.tgz#e83dba49f0b9be4d026d27365350d9f03f54be98"
-  dependencies:
-    isarray "2.0.1"
-
-has-cors@1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/has-cors/-/has-cors-1.1.0.tgz#5e474793f7ea9843d1bb99c23eef49ff126fff39"
-
 helmet-csp@2.4.0:
   version "2.4.0"
   resolved "https://registry.yarnpkg.com/helmet-csp/-/helmet-csp-2.4.0.tgz#7e53a157167a0645aadd7177d12ae6c605c1842e"
@@ -357,10 +299,6 @@ ienoopen@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/ienoopen/-/ienoopen-1.0.0.tgz#346a428f474aac8f50cf3784ea2d0f16f62bda6b"
 
-indexof@0.0.1:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/indexof/-/indexof-0.0.1.tgz#82dc336d232b9062179d05ab3293a66059fd435d"
-
 inherits@2.0.3:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
@@ -369,10 +307,6 @@ ipaddr.js@1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.3.0.tgz#1e03a52fdad83a8bbb2b25cbf4998b4cffcd3dec"
 
-isarray@2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/isarray/-/isarray-2.0.1.tgz#a37d94ed9cda2d59865c9f76fe596ee1f338741e"
-
 lodash.reduce@4.6.0:
   version "4.6.0"
   resolved "https://registry.yarnpkg.com/lodash.reduce/-/lodash.reduce-4.6.0.tgz#f1ab6b839299ad48f784abbf476596f03b914d3b"
@@ -397,7 +331,7 @@ mime-db@~1.27.0:
   version "1.27.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.27.0.tgz#820f572296bbd20ec25ed55e5b5de869e5436eb1"
 
-mime-types@~2.1.11, mime-types@~2.1.15:
+mime-types@~2.1.15:
   version "2.1.15"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.15.tgz#a4ebf5064094569237b8cf70046776d09fc92aed"
   dependencies:
@@ -413,21 +347,13 @@ mime@1.3.4:
   version "1.3.4"
   resolved "https://registry.yarnpkg.com/mime/-/mime-1.3.4.tgz#115f9e3b6b3daf2959983cb38f149a2d40eb5d53"
 
-ms@0.7.2:
-  version "0.7.2"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"
-
 ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
 
-ms@^2.1.1:
-  version "2.1.3"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
-
-negotiator@0.6.1:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
+ms@2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
 
 negotiator@0.6.3:
   version "0.6.3"
@@ -437,20 +363,16 @@ nocache@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/nocache/-/nocache-2.0.0.tgz#202b48021a0c4cbde2df80de15a17443c8b43980"
 
+object-assign@^4:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
+
 on-finished@~2.3.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
   dependencies:
     ee-first "1.1.1"
 
-parseqs@0.0.6:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/parseqs/-/parseqs-0.0.6.tgz#8e4bb5a19d1cdc844a08ac974d34e273afa670d5"
-
-parseuri@0.0.6:
-  version "0.0.6"
-  resolved "https://registry.yarnpkg.com/parseuri/-/parseuri-0.0.6.tgz#e1496e829e3ac2ff47f39a4dd044b32823c4a25a"
-
 parseurl@~1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.1.tgz#c8ab8c9223ba34888aa64a297b28853bec18da56"
@@ -521,63 +443,34 @@ setprototypeof@1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.0.3.tgz#66567e37043eeb4f04d91bd658c0cbefb55b8e04"
 
-socket.io-adapter@~1.1.0:
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-1.1.0.tgz#c7aa46501dd556c2cb8a28af8ff95c0b5e1daa4c"
+socket.io-adapter@~2.5.2:
+  version "2.5.2"
+  resolved "https://registry.yarnpkg.com/socket.io-adapter/-/socket.io-adapter-2.5.2.tgz#5de9477c9182fdc171cd8c8364b9a8894ec75d12"
   dependencies:
-    debug "2.3.3"
+    ws "~8.11.0"
 
-socket.io-client@2.4.0:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/socket.io-client/-/socket.io-client-2.4.0.tgz#aafb5d594a3c55a34355562fc8aea22ed9119a35"
-  dependencies:
-    backo2 "1.0.2"
-    component-bind "1.0.0"
-    component-emitter "~1.3.0"
-    debug "~3.1.0"
-    engine.io-client "~3.5.0"
-    has-binary2 "~1.0.2"
-    indexof "0.0.1"
-    parseqs "0.0.6"
-    parseuri "0.0.6"
-    socket.io-parser "~3.3.0"
-    to-array "0.1.4"
-
-socket.io-parser@~3.3.0:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-3.3.2.tgz#ef872009d0adcf704f2fbe830191a14752ad50b6"
+socket.io-parser@~4.2.1:
+  version "4.2.2"
+  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-4.2.2.tgz#1dd384019e25b7a3d374877f492ab34f2ad0d206"
   dependencies:
-    component-emitter "~1.3.0"
-    debug "~3.1.0"
-    isarray "2.0.1"
+    "@socket.io/component-emitter" "~3.1.0"
+    debug "~4.3.1"
 
-socket.io-parser@~3.4.0:
-  version "3.4.1"
-  resolved "https://registry.yarnpkg.com/socket.io-parser/-/socket.io-parser-3.4.1.tgz#b06af838302975837eab2dc980037da24054d64a"
-  dependencies:
-    component-emitter "1.2.1"
-    debug "~4.1.0"
-    isarray "2.0.1"
-
-socket.io@^2.4.0:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-2.4.0.tgz#01030a2727bd8eb2e85ea96d69f03692ee53d47e"
+socket.io@^4.6.1:
+  version "4.6.1"
+  resolved "https://registry.yarnpkg.com/socket.io/-/socket.io-4.6.1.tgz#62ec117e5fce0692fa50498da9347cfb52c3bc70"
   dependencies:
-    debug "~4.1.0"
-    engine.io "~3.5.0"
-    has-binary2 "~1.0.2"
-    socket.io-adapter "~1.1.0"
-    socket.io-client "2.4.0"
-    socket.io-parser "~3.4.0"
+    accepts "~1.3.4"
+    base64id "~2.0.0"
+    debug "~4.3.2"
+    engine.io "~6.4.1"
+    socket.io-adapter "~2.5.2"
+    socket.io-parser "~4.2.1"
 
 "statuses@>= 1.3.1 < 2", statuses@~1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.3.1.tgz#faf51b9eb74aaef3b3acf4ad5f61abf24cb7b93e"
 
-to-array@0.1.4:
-  version "0.1.4"
-  resolved "https://registry.yarnpkg.com/to-array/-/to-array-0.1.4.tgz#17e6c11f73dd4f3d74cda7a4ff3238e9ad9bf890"
-
 type-is@~1.6.15:
   version "1.6.15"
   resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.15.tgz#cab10fb4909e441c82842eafe1ad646c81804410"
@@ -593,22 +486,18 @@ utils-merge@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.0.tgz#0294fb922bb9375153541c4f7096231f287c8af8"
 
+vary@^1:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
+
 vary@~1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.1.tgz#67535ebb694c1d52257457984665323f587e8d37"
 
-ws@~7.4.2:
-  version "7.4.6"
-  resolved "https://registry.yarnpkg.com/ws/-/ws-7.4.6.tgz#5654ca8ecdeee47c33a9a4bf6d28e2be2980377c"
+ws@~8.11.0:
+  version "8.11.0"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-8.11.0.tgz#6a0d36b8edfd9f96d8b25683db2f8d7de6e8e143"
 
 x-xss-protection@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/x-xss-protection/-/x-xss-protection-1.0.0.tgz#898afb93869b24661cf9c52f9ee8db8ed0764dd9"
-
-xmlhttprequest-ssl@~1.6.2:
-  version "1.6.3"
-  resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.6.3.tgz#03b713873b01659dfa2c1c5d056065b27ddc2de6"
-
-yeast@0.1.2:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/yeast/-/yeast-0.1.2.tgz#008e06d8094320c372dbc2f8ed76a0ca6c8ac419"