diff --git a/index.ts b/index.ts
index 9ccfd2b..4704ef2 100644
--- a/index.ts
+++ b/index.ts
@@ -221,7 +221,7 @@ async function fetchMessages(message: Discord.Message): Promise<void> {
       string,
       Discord.Message
       // eslint-disable-next-line no-await-in-loop
-    > = await message.channel.fetchMessages({
+    > = await message.channel.messages.fetch({
       before: oldestMessageID,
       limit: PAGE_SIZE,
     });
@@ -238,10 +238,11 @@ async function fetchMessages(message: Discord.Message): Promise<void> {
         return dbObj;
       });
     historyCache = historyCache.concat(nonBotMessageFormatted);
-    if (!messages.last() || messages.size < PAGE_SIZE) {
+    const lastMessage = messages.last();
+    if (!lastMessage || messages.size < PAGE_SIZE) {
       keepGoing = false;
     } else {
-      oldestMessageID = messages.last().id;
+      oldestMessageID = lastMessage.id;
     }
   }
   console.log(`Trained from ${historyCache.length} past human authored messages.`);
@@ -303,7 +304,7 @@ function generateResponse(message: Discord.Message, debug = false, tts = message
 
 client.on('ready', () => {
   console.log('Markbot by Charlie Laabs');
-  client.user.setActivity(GAME);
+  if (client.user) client.user.setActivity(GAME);
   regenMarkov();
 });
 
@@ -322,9 +323,10 @@ client.on('message', message => {
   if (message.guild) {
     const command = validateMessage(message);
     if (command === 'help') {
-      const richem = new Discord.RichEmbed()
-        .setAuthor(client.user.username, client.user.avatarURL)
-        .setThumbnail(client.user.avatarURL)
+      const avatarURL = client.user?.avatarURL() || undefined;
+      const richem = new Discord.MessageEmbed()
+        .setAuthor(client.user?.username, avatarURL)
+        .setThumbnail(avatarURL as string)
         .setDescription('A Markov chain chatbot that speaks based on previous chat input.')
         .addField(
           '!mark',
@@ -353,7 +355,7 @@ client.on('message', message => {
       });
     }
     if (command === 'train') {
-      if (isModerator(message.member)) {
+      if (message.member && isModerator(message.member)) {
         console.log('Training...');
         fileObj = {
           messages: [],
@@ -385,18 +387,19 @@ client.on('message', message => {
           dbObj.attachment = message.attachments.values().next().value.url;
         }
         messageCache.push(dbObj);
-        if (message.isMentioned(client.user)) {
+        if (client.user && message.mentions.has(client.user)) {
           generateResponse(message);
         }
       }
     }
     if (command === inviteCmd) {
-      const richem = new Discord.RichEmbed()
-        .setAuthor(`Invite ${client.user.username}`, client.user.avatarURL)
-        .setThumbnail(client.user.avatarURL)
+      const avatarURL = client.user?.avatarURL() || undefined;
+      const richem = new Discord.MessageEmbed()
+        .setAuthor(`Invite ${client.user?.username}`, avatarURL)
+        .setThumbnail(avatarURL as string)
         .addField(
           'Invite',
-          `[Invite ${client.user.username} to your server](https://discordapp.com/oauth2/authorize?client_id=${client.user.id}&scope=bot)`
+          `[Invite ${client.user?.username} to your server](https://discordapp.com/oauth2/authorize?client_id=${client.user?.id}&scope=bot)`
         );
 
       message.channel.send(richem).catch(() => {
diff --git a/package-lock.json b/package-lock.json
index 1ca8ce4..3cc3ba5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,6 +24,21 @@
         "js-tokens": "^4.0.0"
       }
     },
+    "@discordjs/collection": {
+      "version": "0.1.6",
+      "resolved": "https://registry.npmjs.org/@discordjs/collection/-/collection-0.1.6.tgz",
+      "integrity": "sha512-utRNxnd9kSS2qhyivo9lMlt5qgAUasH2gb7BEOn6p0efFh24gjGomHzWKMAPn2hEReOPQZCJaRKoURwRotKucQ=="
+    },
+    "@discordjs/form-data": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/@discordjs/form-data/-/form-data-3.0.1.tgz",
+      "integrity": "sha512-ZfFsbgEXW71Rw/6EtBdrP5VxBJy4dthyC0tpQKGKmYFImlmmrykO14Za+BiIVduwjte0jXEBlhSKf0MWbFp9Eg==",
+      "requires": {
+        "asynckit": "^0.4.0",
+        "combined-stream": "^1.0.8",
+        "mime-types": "^2.1.12"
+      }
+    },
     "@types/eslint-visitor-keys": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/@types/eslint-visitor-keys/-/eslint-visitor-keys-1.0.0.tgz",
@@ -110,6 +125,14 @@
         "tsutils": "^3.17.1"
       }
     },
+    "abort-controller": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/abort-controller/-/abort-controller-3.0.0.tgz",
+      "integrity": "sha512-h8lQ8tacZYnR3vNQTgibj+tODHI5/+l06Au2Pcriv/Gmet0eaj4TwWH41sO9wnHDiQsEj19q0drzdWdeAHtweg==",
+      "requires": {
+        "event-target-shim": "^5.0.0"
+      }
+    },
     "acorn": {
       "version": "7.1.1",
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
@@ -234,10 +257,10 @@
       "integrity": "sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==",
       "dev": true
     },
-    "async-limiter": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
-      "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ=="
+    "asynckit": {
+      "version": "0.4.0",
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
+      "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
     },
     "balanced-match": {
       "version": "1.0.0",
@@ -329,6 +352,14 @@
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
       "dev": true
     },
+    "combined-stream": {
+      "version": "1.0.8",
+      "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.8.tgz",
+      "integrity": "sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==",
+      "requires": {
+        "delayed-stream": "~1.0.0"
+      }
+    },
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
@@ -401,6 +432,11 @@
         "object-keys": "^1.0.8"
       }
     },
+    "delayed-stream": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz",
+      "integrity": "sha1-3zrhmayt+31ECqrgsp4icrJOxhk="
+    },
     "diff": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.1.tgz",
@@ -408,15 +444,18 @@
       "dev": true
     },
     "discord.js": {
-      "version": "11.5.1",
-      "resolved": "https://registry.npmjs.org/discord.js/-/discord.js-11.5.1.tgz",
-      "integrity": "sha512-tGhV5xaZXE3Z+4uXJb3hYM6gQ1NmnSxp9PClcsSAYFVRzH6AJH74040mO3afPDMWEAlj8XsoPXXTJHTxesqcGw==",
+      "version": "12.3.1",
+      "resolved": "https://registry.npmjs.org/discord.js/-/discord.js-12.3.1.tgz",
+      "integrity": "sha512-mSFyV/mbvzH12UXdS4zadmeUf8IMQOo/YdunubG1wWt1xjWvtaJz/s9CGsFD2B5pTw1W/LXxxUbrQjIZ/xlUdw==",
       "requires": {
-        "long": "^4.0.0",
-        "prism-media": "^0.0.3",
-        "snekfetch": "^3.6.4",
-        "tweetnacl": "^1.0.0",
-        "ws": "^6.0.0"
+        "@discordjs/collection": "^0.1.6",
+        "@discordjs/form-data": "^3.0.1",
+        "abort-controller": "^3.0.0",
+        "node-fetch": "^2.6.0",
+        "prism-media": "^1.2.2",
+        "setimmediate": "^1.0.5",
+        "tweetnacl": "^1.0.3",
+        "ws": "^7.3.1"
       }
     },
     "doctrine": {
@@ -751,6 +790,11 @@
       "integrity": "sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==",
       "dev": true
     },
+    "event-target-shim": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/event-target-shim/-/event-target-shim-5.0.1.tgz",
+      "integrity": "sha512-i/2XbnSz/uxRCU6+NdVJgKWDTM427+MqYbkQzD321DuCQJUqOuJKIA0IM2+W2xtYHdKOmZ4dR6fExsd4SXL+WQ=="
+    },
     "external-editor": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/external-editor/-/external-editor-3.1.0.tgz",
@@ -1157,11 +1201,6 @@
       "integrity": "sha1-vyJJiGzlFM2hEvrpIYzcBlIR/Jw=",
       "dev": true
     },
-    "long": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/long/-/long-4.0.0.tgz",
-      "integrity": "sha512-XsP+KhQif4bjX1kbuSiySJFNAehNxgLb6hPRGJ9QsUr8ajHkuXGdrHmFUTUUXhDwVX2R5bY4JNZEwbUiMhV+MA=="
-    },
     "long-timeout": {
       "version": "0.1.1",
       "resolved": "https://registry.npmjs.org/long-timeout/-/long-timeout-0.1.1.tgz",
@@ -1181,6 +1220,19 @@
         "lodash": "^4.17.14"
       }
     },
+    "mime-db": {
+      "version": "1.44.0",
+      "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.44.0.tgz",
+      "integrity": "sha512-/NOTfLrsPBVeH7YtFPgsVWveuL+4SjjYxaQ1xtM1KMFj7HdxlBlxeyNLzhyJVx7r4rZGJAZ/6lkKCitSc/Nmpg=="
+    },
+    "mime-types": {
+      "version": "2.1.27",
+      "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.27.tgz",
+      "integrity": "sha512-JIhqnCasI9yD+SsmkquHBxTSEuZdQX5BuQnS2Vc7puQQQ+8yiP5AY5uWhpdv4YL4VM5c6iliiYWPgJ/nJQLp7w==",
+      "requires": {
+        "mime-db": "1.44.0"
+      }
+    },
     "mimic-fn": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/mimic-fn/-/mimic-fn-2.1.0.tgz",
@@ -1197,18 +1249,18 @@
       }
     },
     "minimist": {
-      "version": "0.0.8",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-      "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==",
       "dev": true
     },
     "mkdirp": {
-      "version": "0.5.1",
-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
-      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+      "version": "0.5.5",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.5.tgz",
+      "integrity": "sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==",
       "dev": true,
       "requires": {
-        "minimist": "0.0.8"
+        "minimist": "^1.2.5"
       }
     },
     "moment": {
@@ -1253,6 +1305,11 @@
       "integrity": "sha512-1nh45deeb5olNY7eX82BkPO7SSxR5SSYJiPTrTdFUVYwAl8CKMA5N9PjTYkHiRjisVcxcQ1HXdLhx2qxxJzLNQ==",
       "dev": true
     },
+    "node-fetch": {
+      "version": "2.6.1",
+      "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.1.tgz",
+      "integrity": "sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw=="
+    },
     "node-gyp-build": {
       "version": "3.7.0",
       "resolved": "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-3.7.0.tgz",
@@ -1519,9 +1576,9 @@
       }
     },
     "prism-media": {
-      "version": "0.0.3",
-      "resolved": "https://registry.npmjs.org/prism-media/-/prism-media-0.0.3.tgz",
-      "integrity": "sha512-c9KkNifSMU/iXT8FFTaBwBMr+rdVcN+H/uNv1o+CuFeTThNZNTOrQ+RgXA1yL/DeLk098duAeRPP3QNPNbhxYQ=="
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/prism-media/-/prism-media-1.2.2.tgz",
+      "integrity": "sha512-I+nkWY212lJ500jLe4tN9tWO7nRiBAVdMv76P9kffZjYhw20raMlW1HSSvS+MLXC9MmbNZCazMrAr+5jEEgTuw=="
     },
     "progress": {
       "version": "2.0.3",
@@ -1626,6 +1683,11 @@
       "integrity": "sha512-b39TBaTSfV6yBrapU89p5fKekE2m/NwnDocOVruQFS1/veMgdzuPcnOM34M6CwxW8jH/lxEa5rBoDeUwu5HHTw==",
       "dev": true
     },
+    "setimmediate": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
+      "integrity": "sha1-KQy7Iy4waULX1+qbg3Mqt4VvgoU="
+    },
     "shebang-command": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
@@ -1666,11 +1728,6 @@
         }
       }
     },
-    "snekfetch": {
-      "version": "3.6.4",
-      "resolved": "https://registry.npmjs.org/snekfetch/-/snekfetch-3.6.4.tgz",
-      "integrity": "sha512-NjxjITIj04Ffqid5lqr7XdgwM7X61c/Dns073Ly170bPQHLm6jkmelye/eglS++1nfTWktpP6Y2bFXjdPlQqdw=="
-    },
     "sorted-array-functions": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/sorted-array-functions/-/sorted-array-functions-1.2.0.tgz",
@@ -1929,9 +1986,9 @@
       }
     },
     "tweetnacl": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-1.0.1.tgz",
-      "integrity": "sha512-kcoMoKTPYnoeS50tzoqjPY3Uv9axeuuFAZY9M/9zFnhoVvRfxz9K29IMPD7jGmt2c8SW7i3gT9WqDl2+nV7p4A=="
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-1.0.3.tgz",
+      "integrity": "sha512-6rt+RN7aOi1nGMyC4Xa5DdYiukl2UWCbcJft7YhxReBGQD7OAM8Pbxw6YMo4r2diNEA8FEmu32YOn9rhaiE5yw=="
     },
     "type-check": {
       "version": "0.3.2",
@@ -2010,12 +2067,9 @@
       }
     },
     "ws": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.1.tgz",
-      "integrity": "sha512-GIyAXC2cB7LjvpgMt9EKS2ldqr0MTrORaleiOno6TweZ6r3TKtoFQWay/2PceJ3RuBasOHzXNn5Lrw1X0bEjqA==",
-      "requires": {
-        "async-limiter": "~1.0.0"
-      }
+      "version": "7.3.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.3.1.tgz",
+      "integrity": "sha512-D3RuNkynyHmEJIpD2qrgVkc9DQ23OrN/moAwZX4L8DfvszsJxpjQuUq3LMx6HoYji9fbIOBY18XWBsAux1ZZUA=="
     },
     "yn": {
       "version": "3.1.1",
@@ -2024,18 +2078,11 @@
       "dev": true
     },
     "zlib-sync": {
-      "version": "0.1.6",
-      "resolved": "https://registry.npmjs.org/zlib-sync/-/zlib-sync-0.1.6.tgz",
-      "integrity": "sha512-B2XGrhlXs/izEks+705vn/aL+nWyPgnS1glyCeH8wgZdOvztRn3ZEdqclj6GoJSeA/iRSqaTlznG2KO1M/GuWg==",
+      "version": "0.1.7",
+      "resolved": "https://registry.npmjs.org/zlib-sync/-/zlib-sync-0.1.7.tgz",
+      "integrity": "sha512-UmciU6ZrIwtwPC8noMzq+kGMdiWwNRZ3wC0SbED4Ew5Ikqx14MqDPRs/Pbk+3rZPh5SzsOgUBs1WRE0iieddpg==",
       "requires": {
         "nan": "^2.14.0"
-      },
-      "dependencies": {
-        "nan": {
-          "version": "2.14.0",
-          "resolved": "https://registry.npmjs.org/nan/-/nan-2.14.0.tgz",
-          "integrity": "sha512-INOFj37C7k3AfaNTtX8RhsTw7qRy7eLET14cROi9+5HAVbbHuIWUHEauBv5qT4Av2tWasiTY1Jw6puUNqRJXQg=="
-        }
       }
     }
   }
diff --git a/package.json b/package.json
index e8ecd48..0a0dcca 100644
--- a/package.json
+++ b/package.json
@@ -26,12 +26,12 @@
   "license": "MIT",
   "dependencies": {
     "bufferutil": "^4.0.1",
-    "discord.js": "^11.5.1",
+    "discord.js": "^12.3.1",
     "erlpack": "^0.1.3",
     "markov-strings": "^2.1.0",
     "node-schedule": "^1.3.2",
     "source-map-support": "^0.5.16",
-    "zlib-sync": "^0.1.6"
+    "zlib-sync": "^0.1.7"
   },
   "engines": {
     "node": ">=12.0.0"
@@ -53,4 +53,4 @@
   "eslintIgnore": [
     "**/*.js"
   ]
-}
\ No newline at end of file
+}