diff --git a/Install-MMGen-on-Debian-or-Ubuntu-Linux.md b/Install-MMGen-on-Debian-or-Ubuntu-Linux.md
index c40e073..7da9a83 100644
--- a/Install-MMGen-on-Debian-or-Ubuntu-Linux.md
+++ b/Install-MMGen-on-Debian-or-Ubuntu-Linux.md
@@ -2,7 +2,7 @@
 
 > Install required Debian/Ubuntu packages:
 
-		$ sudo apt-get install python-pip python-dev python-pexpect python-ecdsa python-scrypt libssl-dev git autoconf libtool wipe python-setuptools libgmp-dev
+		$ sudo apt-get install python-pip python-dev python-pexpect python-ecdsa python-scrypt libssl-dev git autoconf libtool wipe python-setuptools libgmp-dev python-pysha3
 
 > Install the Python Cryptography Toolkit: