diff --git a/README.md b/README.md
index 77336e8..3d21fd8 100644
--- a/README.md
+++ b/README.md
@@ -60,5 +60,5 @@ For more details, please look in tests folder
---
Remark:
-* `*` WEBP is currently for `show()`, or `save()` but not support as source image.
+* `*` WEBP
There are known bugs that prior PHP 7.0, the transparent PNG or GIF that converted to WEBP will be filled with the background color.
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