diff --git a/src/util/UserFlags.js b/src/util/UserFlags.js
index 584975048..5e113af10 100644
--- a/src/util/UserFlags.js
+++ b/src/util/UserFlags.js
@@ -36,6 +36,7 @@ class UserFlags extends BitField {}
  * * `EARLY_VERIFIED_BOT_DEVELOPER`
  * * `DISCORD_CERTIFIED_MODERATOR`
  * * `BOT_HTTP_INTERACTIONS`
+ * * `ACTIVE_DEVELOPER`
  * @type {Object}
  * @see {@link https://discord.com/developers/docs/resources/user#user-object-user-flags}
  */
@@ -54,6 +55,7 @@ UserFlags.FLAGS = {
   EARLY_VERIFIED_BOT_DEVELOPER: 1 << 17,
   DISCORD_CERTIFIED_MODERATOR: 1 << 18,
   BOT_HTTP_INTERACTIONS: 1 << 19,
+  ACTIVE_DEVELOPER: 1 << 22,
 };
 
 module.exports = UserFlags;
diff --git a/typings/index.d.ts b/typings/index.d.ts
index f427c42a1..cc7ca061e 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -6440,7 +6440,8 @@ export type UserFlagsString =
   | 'VERIFIED_BOT'
   | 'EARLY_VERIFIED_BOT_DEVELOPER'
   | 'DISCORD_CERTIFIED_MODERATOR'
-  | 'BOT_HTTP_INTERACTIONS';
+  | 'BOT_HTTP_INTERACTIONS'
+  | 'ACTIVE_DEVELOPER';
 
 export type UserMention = `<@${Snowflake}>`;