diff --git a/README.md b/README.md
index 6eff4f6..ab3b00d 100644
--- a/README.md
+++ b/README.md
@@ -6,10 +6,10 @@ A plugin to generate image from source code.
 ## Requirements
 - [denops.vim](https://github.com/vim-denops/denops.vim)
 - Deno v1.24.3 or earlier 
+- xclip(only Linux)
 
 ## Known issues
 - Deno `v1.25.0` or later is not work
-- Cannot run denops shared server
 
 ## Dependencies
 Please refer silicon's [dependencies](https://github.com/Aloxaf/silicon#dependencies)