diff --git a/README.md b/README.md
index a91d4a8..c30eb54 100644
--- a/README.md
+++ b/README.md
@@ -13,4 +13,5 @@ Not being maintained and uncertain whether they will be updated.
 
 - Only local `assets://` config is supported, and network config is not available. 
 - Only video module.
+- Not supporting sniffing.
 - etc.