Installation-guide.md

@@ -30,11 +30,11 @@ Now, let's install FreeDMR :-)
 
 ### Download source
 
-[Version 1](https://github.com/hacknix/FreeDMR/archive/v1.0.tar.gz)
+[Version 1](https://github.com/hacknix/FreeDMR/archive/v1.2.1.tar.gz)
 
 ### Prepare source
 
-`#tar zxvf v1.0.tar.gz`
+`#tar zxvf v1.2.1.tar.gz`
 
 `#cd FreeDMR`