diff --git a/README.md b/README.md
index 437efe6..47d6785 100644
--- a/README.md
+++ b/README.md
@@ -5,23 +5,23 @@
 Install https://github.com/Neilpang/acme.sh
 
 ```
-curl https://get.acme.sh | bash
+curl https://get.acme.sh | sh
 
 ```
 
 or
 
 ```
-wget -O -  https://get.acme.sh | bash
+wget -O -  https://get.acme.sh | sh
 ```
 
 ## 2. Or, install from Git hub:
 
 ```
-curl https://raw.githubusercontent.com/Neilpang/acme.sh/master/acme.sh | INSTALLONLINE=1  bash
+curl https://raw.githubusercontent.com/Neilpang/acme.sh/master/acme.sh | INSTALLONLINE=1  sh
 ```
 
 or:
 ```
-wget -O -  https://raw.githubusercontent.com/Neilpang/acme.sh/master/acme.sh | INSTALLONLINE=1  bash
+wget -O -  https://raw.githubusercontent.com/Neilpang/acme.sh/master/acme.sh | INSTALLONLINE=1  sh
 ```