diff --git a/packages/types/src/discord/channel.ts b/packages/types/src/discord/channel.ts
index 8da3566da..c9e1243f8 100644
--- a/packages/types/src/discord/channel.ts
+++ b/packages/types/src/discord/channel.ts
@@ -181,6 +181,14 @@ export enum ChannelFlags {
   RequireTag = 1 << 4,
   /** When set hides the embedded media download options. Available only for media channels. */
   HideMediaDownloadOptions = 1 << 15,
+  /**
+   * This channel is a Spoiler Channel i.e. users must opt in to view its contents.
+   *
+   * @remarks
+   * Can be set on all textual guild channels and voice channels (not `GUILD_STAGE`).
+   * Can only be set if channel's `nsfw` is false
+   */
+  IsSpoilerChannel = 1 << 21,
 }
 
 /** https://docs.discord.com/developers/resources/channel#channel-object-sort-order-types */
diff --git a/packages/types/src/discordeno/channel.ts b/packages/types/src/discordeno/channel.ts
index 8691ad790..3e8d93092 100644
--- a/packages/types/src/discordeno/channel.ts
+++ b/packages/types/src/discordeno/channel.ts
@@ -178,11 +178,7 @@ export interface ModifyChannel {
    * Channel flags combined as a bitfield.
    *
    * @remarks
-   * - `REQUIRE_TAG` is supported only by {@link ChannelTypes.GuildForum} and {@link ChannelTypes.GuildMedia} channels.
-   * - `HIDE_MEDIA_DOWNLOAD_OPTIONS` is supported only by {@link ChannelTypes.GuildMedia} channels
-   * - `PINNED` can only be set for threads in {@link ChannelTypes.GuildForum} and {@link ChannelTypes.GuildMedia} channels
-   *
-   * This is only valid when editing a guild channel of type {@link ChannelTypes.GuildForum} or {@link ChannelTypes.GuildMedia}, or a thread.
+   * This is only valid when editing a guild channel of type {@link ChannelTypes.GuildText}, {@link ChannelTypes.GuildVoice}, {@link ChannelTypes.GuildAnnouncement}, {@link ChannelTypes.GuildMedia}, {@link ChannelTypes.GuildForum} or a thread.
    *
    * @see {@link ChannelFlags}
    */
diff --git a/packages/types/src/discordeno/guild.ts b/packages/types/src/discordeno/guild.ts
index 8b8d439f4..7672f9c84 100644
--- a/packages/types/src/discordeno/guild.ts
+++ b/packages/types/src/discordeno/guild.ts
@@ -100,6 +100,15 @@ export interface CreateGuildChannel {
   defaultForumLayout?: ForumLayout;
   /** The initial ratelimit to set on newly created threads in a channel. */
   defaultThreadRateLimitPerUser?: number;
+  /**
+   * Channel flags combined as a bitfield.
+   *
+   * @remarks
+   * This is only valid when editing a guild channel of type {@link ChannelTypes.GuildText}, {@link ChannelTypes.GuildVoice}, {@link ChannelTypes.GuildAnnouncement}, {@link ChannelTypes.GuildMedia}, {@link ChannelTypes.GuildForum}.
+   *
+   * @see {@link ChannelFlags}
+   */
+  flags?: number;
 }
 
 /** https://docs.discord.com/developers/resources/guild#modify-guild-channel-positions-json-params */
@@ -112,6 +121,12 @@ export interface ModifyGuildChannelPositions {
   lockPermissions?: boolean | null;
   /** The new parent ID for the channel that is moved */
   parentId?: BigString | null;
+  /**
+   * Channel flags combined as a bitfield.
+   *
+   * @see {@link ChannelFlags}
+   */
+  flags?: number | null;
 }
 
 /** https://docs.discord.com/developers/resources/guild#list-guild-members-query-string-params */