diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # ms2130-firmware
-新版工具可以看版本号了，O(∩_∩)O
+新版[工具](https://hanx.jp/wp-content/uploads/2025/03/Hanx_HDMI_Capture_4K_Basic_FW_UPdater_202503.zip)可以看版本号了，O(∩_∩)O
 <img width="963" height="795" alt="tool" src="https://github.com/user-attachments/assets/137adfad-6985-4ae5-9bf3-2d92e95bc30f" />
 
 4k firmware not tested, use it at your own risk(it may brick)