diff --git a/README.md b/README.md
index ef8676de..3c854218 100644
--- a/README.md
+++ b/README.md
@@ -160,7 +160,7 @@ If you are using CentOS 7, you need to install these prequirement to build from
 
 ```bash 
 yum install epel-release -y
-yum install gcc gettext autoconf libtool automake make pcre-devel asciidoc xmlto udns-devel libev-devel -y
+yum install gcc gettext autoconf libtool automake make pcre-devel asciidoc xmlto udns-devel libev-devel libsodium-devel mbedtls-devel -y
 ```
 
 #### Install from repository