diff --git a/CentOS-7-installation.md b/CentOS-7-installation.md
index 6621eac..2d78239 100644
--- a/CentOS-7-installation.md
+++ b/CentOS-7-installation.md
@@ -1,5 +1,6 @@
 1. Install dependencies:
    ```
+   sudo yum install -y epel-release
    sudo yum -y install python-virtualenv python-devel libvirt-devel glibc gcc nginx supervisor libxml2 libxml2-devel git
    ```