diff --git a/README.md b/README.md
index 39e9321..4b53750 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ A file list program that supports multiple storage.
 
 --------------
 
-## How to install prebuilt packages (OpenWrt 21 & 22 & master)
+## How to install prebuilt packages (OpenWrt 19 & 21 & 22 & master)
 
 - Login OpenWrt terminal (SSH)
 
@@ -40,4 +40,4 @@ A file list program that supports multiple storage.
 
 --------------
 
-![](https://user-images.githubusercontent.com/16485166/182457881-ac7dfb65-aa3b-41fb-9b55-1770f136aa5e.png)
\ No newline at end of file
+![](https://user-images.githubusercontent.com/16485166/182457881-ac7dfb65-aa3b-41fb-9b55-1770f136aa5e.png)