diff --git a/README.md b/README.md
index a398dfe..a0a4de5 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 English / [简体中文](./README-CN.md)
 
-### ！！Must be installed first [MP4Box](https://gpac.io/downloads/gpac-nightly-builds/)，And confirm [MP4Box](https://gpac.io/downloads/gpac-nightly-builds/) Correctly added to environment variables ！！
+### ！！Must be installed first [MP4Box](https://gpac.io/downloads/gpac-nightly-builds/)，And confirm [MP4Box](https://gpac.io/downloads/gpac-nightly-builds/) Correctly added to environment variables
 
 ### Add features