diff --git a/README.md b/README.md
index 60adda1..610a963 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ Commands:
 
 ### Demo
 
-<video src="https://code.apps.glenux.net/glenux/mfm/raw/branch/develop/doc/output.webm" width="512" height="376" style="max-width: 100%;" controls="controls"></video>
+<video src="https://code.apps.glenux.net/glenux/mfm/raw/branch/develop/doc/output.webm" width="810" height="595" style="max-width: 100%;" controls="controls"></video>
 
 ## Configuration