diff --git a/app/db/models/users.server.ts b/app/db/models/users.server.ts
index b4b8bdbca..e7df9dc96 100644
--- a/app/db/models/users.server.ts
+++ b/app/db/models/users.server.ts
@@ -57,6 +57,29 @@ export function updateProfile(args: Pick<User, "country" | "id" | "bio">) {
   updateProfileStm.run(args);
 }
 
+const updateByDiscordIdStm = sql.prepare(`
+  update "User"
+    set "discordAvatar" = $discordAvatar,
+        "discordName" = $discordName,
+        "discordDiscriminator" = $discordDiscriminator
+    where "discordId" = $discordId
+`);
+
+export const updateMany = sql.transaction(
+  (
+    argsArr: Array<
+      Pick<
+        User,
+        "discordAvatar" | "discordName" | "discordDiscriminator" | "discordId"
+      >
+    >
+  ) => {
+    for (const updateArgs of argsArr) {
+      updateByDiscordIdStm.run(updateArgs);
+    }
+  }
+);
+
 const deleteAllPatronDataStm = sql.prepare(`
   update "User"
     set "patronTier" = null,
diff --git a/app/routes/faq.tsx b/app/routes/faq.tsx
index 36a09ccae..a6fa87d7c 100644
--- a/app/routes/faq.tsx
+++ b/app/routes/faq.tsx
@@ -33,6 +33,7 @@ export default function FAQPage() {
           a score below 50% they get demoted a tier or in the case of +3 kicked.
         </p>
       </details>
+
       <details className="faq__details">
         <summary className="faq__summary">
           How to get a badge prize for my event?
@@ -48,6 +49,27 @@ export default function FAQPage() {
           your idea.
         </p>
       </details>
+
+      <details className="faq__details">
+        <summary className="faq__summary">
+          How to update my avatar or username?
+        </summary>
+        <p>
+          Updating username or avatar on Discord doesn&apos;t right away update
+          them on sendou.ink. To make that happen you have two options:
+        </p>
+        <ol>
+          <li>
+            If you are a member of this website&apos;s Discord or the Plus
+            Server you can simply wait. There is a routine that runs once a day
+            that handles the updating.
+          </li>
+          <li>
+            Alternatively if you want to update them right away you can log out
+            and back in on sendou.ink.
+          </li>
+        </ol>
+      </details>
     </Main>
   );
 }
diff --git a/app/routes/users.tsx b/app/routes/users.tsx
index ca2445753..89ecf6530 100644
--- a/app/routes/users.tsx
+++ b/app/routes/users.tsx
@@ -1,9 +1,21 @@
-import type { LoaderFunction } from "@remix-run/node";
+import type { ActionFunction, LoaderFunction } from "@remix-run/node";
 import { json } from "@remix-run/node";
 import { db } from "~/db";
 import type { UserWithPlusTier } from "~/db/types";
+import { canAccessLohiEndpoint } from "~/permissions";
 import { discordFullName } from "~/utils/strings";
 
+export const action: ActionFunction = async ({ request }) => {
+  if (!canAccessLohiEndpoint(request)) {
+    throw new Response(null, { status: 403 });
+  }
+
+  // input untyped but we trust Lohi to give us correctly shaped request here
+  db.users.updateMany(await request.json());
+
+  return null;
+};
+
 export interface UsersLoaderData {
   users: ({
     discordFullName: string;
diff --git a/discord-bot/commands/index.ts b/discord-bot/commands/index.ts
index 47a13777a..4149e39d7 100644
--- a/discord-bot/commands/index.ts
+++ b/discord-bot/commands/index.ts
@@ -2,6 +2,7 @@ import { questionCommand } from "./q";
 import { lfgRoleCommand } from "./lfg";
 import { accessCommand } from "./access";
 import { plusCommand } from "./plus";
+import { updateAllCommand } from "./updateall";
 import type { BotCommand } from "discord-bot/types";
 
 export const commands = [
@@ -9,6 +10,7 @@ export const commands = [
   lfgRoleCommand,
   accessCommand,
   plusCommand,
+  updateAllCommand,
 ];
 
 export const commandsMap = Object.fromEntries(commands.map((c) => [c.name, c]));
diff --git a/discord-bot/commands/plus.ts b/discord-bot/commands/plus.ts
index e35050cb1..8a954a5f4 100644
--- a/discord-bot/commands/plus.ts
+++ b/discord-bot/commands/plus.ts
@@ -3,12 +3,11 @@ import { Client, GuildMember, Role } from "discord.js";
 import invariant from "tiny-invariant";
 import ids from "../ids";
 import type { BotCommand } from "../types";
-import { isPlusTierRoleId, plusTierToRoleId, usersWithAccess } from "../utils";
+import { plusTierToRoleId, usersWithAccess } from "../utils";
 
 const COMMAND_NAME = "plus";
 const ACTION_ARG = "dry";
 
-// doesn't seem to remove all roles...
 export const plusCommand: BotCommand = {
   guilds: [ids.guilds.adminServer],
   name: COMMAND_NAME,
diff --git a/discord-bot/commands/updateall.ts b/discord-bot/commands/updateall.ts
new file mode 100644
index 000000000..cf2ce2967
--- /dev/null
+++ b/discord-bot/commands/updateall.ts
@@ -0,0 +1,66 @@
+import { SlashCommandBuilder } from "@discordjs/builders";
+import { Client } from "discord.js";
+import invariant from "tiny-invariant";
+import type { User } from "../../app/db/types";
+import ids from "../ids";
+import type { BotCommand } from "../types";
+import { sendouInkFetch } from "../utils";
+
+const COMMAND_NAME = "updateall";
+
+const guildsToCrawlForUpdates = [ids.guilds.plusServer, ids.guilds.sendou];
+
+export const updateAllCommand: BotCommand = {
+  guilds: [ids.guilds.adminServer],
+  name: COMMAND_NAME,
+  builder: new SlashCommandBuilder()
+    .setName(COMMAND_NAME)
+    .setDescription("Update sendou.ink usernames and avatars"),
+  // @ts-expect-error TODO: fix. Library doesn't seem to extract API Message type so I could fix this error?
+  execute: async ({ interaction, client }) => {
+    await interaction.deferReply({ ephemeral: true });
+
+    const userUpdates = await getUsersToUpdate(client);
+    const response = await sendouInkFetch("/users", {
+      method: "post",
+      body: JSON.stringify(userUpdates),
+    });
+
+    if (!response.ok) {
+      return interaction.editReply(
+        `Update failed with status code ${response.status}`
+      );
+    }
+
+    return interaction.editReply(`Sent ${userUpdates.length} users`);
+  },
+};
+
+async function getUsersToUpdate(client: Client<boolean>) {
+  const usersSeen = new Set<string>();
+  const userUpdates: Array<
+    Pick<
+      User,
+      "discordId" | "discordName" | "discordDiscriminator" | "discordAvatar"
+    >
+  > = [];
+  for (const guildId of guildsToCrawlForUpdates) {
+    const guild = client.guilds.cache.find((g) => g.id === guildId);
+    invariant(guild);
+
+    for (const [, { user }] of await guild.members.fetch()) {
+      if (usersSeen.has(user.id)) continue;
+
+      userUpdates.push({
+        discordId: user.id,
+        discordAvatar: user.avatar,
+        discordDiscriminator: user.discriminator,
+        discordName: user.username,
+      });
+
+      usersSeen.add(user.id);
+    }
+  }
+
+  return userUpdates;
+}
diff --git a/discord-bot/utils.ts b/discord-bot/utils.ts
index 932563671..ad0cfa224 100644
--- a/discord-bot/utils.ts
+++ b/discord-bot/utils.ts
@@ -3,13 +3,18 @@ import { LOHI_TOKEN_HEADER_NAME } from "~/constants";
 import type { PlusListLoaderData } from "~/routes/plus/list";
 import ids from "./ids";
 
-export async function usersWithAccess(): Promise<PlusListLoaderData> {
+export function sendouInkFetch(path: string, init?: RequestInit) {
   invariant(process.env["SENDOU_INK_URL"], "SENDOU_INK_URL is not set");
   invariant(process.env["LOHI_TOKEN"], "LOHI_TOKEN is not set");
 
-  const response = await fetch(`${process.env["SENDOU_INK_URL"]}/plus/list`, {
+  return fetch(`${process.env["SENDOU_INK_URL"]}${path}`, {
     headers: [[LOHI_TOKEN_HEADER_NAME, process.env["LOHI_TOKEN"]]],
+    ...init,
   });
+}
+
+export async function usersWithAccess(): Promise<PlusListLoaderData> {
+  const response = await sendouInkFetch("/plus/list");
 
   if (!response.ok) {
     throw new Error(