diff --git a/backend/open_webui/apps/audio/main.py b/backend/open_webui/apps/audio/main.py
index 0eee533bd..a1e6e94fa 100644
--- a/backend/open_webui/apps/audio/main.py
+++ b/backend/open_webui/apps/audio/main.py
@@ -360,7 +360,7 @@ def transcribe(
 ):
     log.info(f"file.content_type: {file.content_type}")
 
-    if file.content_type not in ["audio/mpeg", "audio/wav", "audio/ogg"]:
+    if file.content_type not in ["audio/mpeg", "audio/wav", "audio/ogg", "audio/x-m4a"]:
         raise HTTPException(
             status_code=status.HTTP_400_BAD_REQUEST,
             detail=ERROR_MESSAGES.FILE_NOT_SUPPORTED,
diff --git a/src/lib/components/chat/MessageInput.svelte b/src/lib/components/chat/MessageInput.svelte
index f474b755b..ea6b0aec8 100644
--- a/src/lib/components/chat/MessageInput.svelte
+++ b/src/lib/components/chat/MessageInput.svelte
@@ -107,7 +107,7 @@
 		files = [...files, fileItem];
 
 		// Check if the file is an audio file and transcribe/convert it to text file
-		if (['audio/mpeg', 'audio/wav', 'audio/ogg'].includes(file['type'])) {
+		if (['audio/mpeg', 'audio/wav', 'audio/ogg', 'audio/x-m4a'].includes(file['type'])) {
 			const res = await transcribeAudio(localStorage.token, file).catch((error) => {
 				toast.error(error);
 				return null;
diff --git a/src/lib/components/workspace/Documents.svelte b/src/lib/components/workspace/Documents.svelte
index f1e77bddd..38f46f745 100644
--- a/src/lib/components/workspace/Documents.svelte
+++ b/src/lib/components/workspace/Documents.svelte
@@ -55,7 +55,7 @@
 	const uploadDoc = async (file, tags?: object) => {
 		console.log(file);
 		// Check if the file is an audio file and transcribe/convert it to text file
-		if (['audio/mpeg', 'audio/wav', 'audio/ogg'].includes(file['type'])) {
+		if (['audio/mpeg', 'audio/wav', 'audio/ogg', 'audio/x-m4a'].includes(file['type'])) {
 			const transcribeRes = await transcribeAudio(localStorage.token, file).catch((error) => {
 				toast.error(error);
 				return null;
diff --git a/src/lib/constants.ts b/src/lib/constants.ts
index 5fc1e7b19..ad7b5c29e 100644
--- a/src/lib/constants.ts
+++ b/src/lib/constants.ts
@@ -31,7 +31,9 @@ export const SUPPORTED_FILE_TYPE = [
 	'application/x-javascript',
 	'text/markdown',
 	'audio/mpeg',
-	'audio/wav'
+	'audio/wav',
+	'audio/ogg',
+	'audio/x-m4a'
 ];
 
 export const SUPPORTED_FILE_EXTENSIONS = [