diff --git a/README.md b/README.md
index ffd6f56e45..a8df5e7866 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,9 @@ At least 25G HDD<br/>
 
 ## Install the necessary packages 
 ```bash
-sudo apt-get -y install build-essential asciidoc binutils bzip2 gawk gettext git libncurses5-dev libz-dev patch unzip zlib1g-dev lib32gcc1 libc6-dev-i386 subversion flex uglifyjs git-core gcc-multilib g++-multilib p7zip p7zip-full msmtp libssl-dev texinfo libreadline-dev libglib2.0-dev xmlto qemu-utils upx libelf-dev autoconf automake libtool autopoint ccache curl wget vim nano python python3 python-pip python3-pip haveged lrzsz
+sudo apt-get update -y
+sudo apt-get full-upgrade -y
+sudo apt-get install -y build-essential asciidoc binutils bzip2 gawk gettext git libncurses5-dev libz-dev patch unzip zlib1g-dev lib32gcc1 libc6-dev-i386 subversion flex uglifyjs git-core gcc-multilib g++-multilib p7zip p7zip-full msmtp libssl-dev texinfo libreadline-dev libglib2.0-dev xmlto qemu-utils upx libelf-dev autoconf automake libtool autopoint ccache curl wget vim nano python python3 python-pip python3-pip python-ply python3-ply haveged lrzsz
 ```
 
 ## Clone the source