diff --git a/esm/client/2_message_manager.js b/esm/client/2_message_manager.js
index 07011e1..c9206c9 100644
--- a/esm/client/2_message_manager.js
+++ b/esm/client/2_message_manager.js
@@ -20,7 +20,7 @@ import { parseHtml } from "./0_html.js";
 import { parseMarkdown } from "./0_markdown.js";
 import { getFileContents, isHttpUrl } from "./0_utilities.js";
 const FALLBACK_MIME_TYPE = "application/octet-stream";
-const STICKER_MIME_TYPES = ["image/webp", "video/webp", "application/x-tgsticker"];
+const STICKER_MIME_TYPES = ["image/webp", "video/webm", "application/x-tgsticker"];
 export class MessageManager {
     constructor(c) {
         _MessageManager_instances.add(this);
diff --git a/script/client/2_message_manager.js b/script/client/2_message_manager.js
index 4237abc..4e08280 100644
--- a/script/client/2_message_manager.js
+++ b/script/client/2_message_manager.js
@@ -23,7 +23,7 @@ const _0_html_js_1 = require("./0_html.js");
 const _0_markdown_js_1 = require("./0_markdown.js");
 const _0_utilities_js_1 = require("./0_utilities.js");
 const FALLBACK_MIME_TYPE = "application/octet-stream";
-const STICKER_MIME_TYPES = ["image/webp", "video/webp", "application/x-tgsticker"];
+const STICKER_MIME_TYPES = ["image/webp", "video/webm", "application/x-tgsticker"];
 class MessageManager {
     constructor(c) {
         _MessageManager_instances.add(this);