diff --git a/README.md b/README.md
index de497a02d..358a5f9a3 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,7 @@ $ glance image-create --name centos7 --disk-format=qcow2 --container-format=bare
 $ glance image-update centos7 --is-public true
 $ . ~stack/stackrc
 $ cd browbeat
+$ sudo yum install -y freetype-devel libpng-devel
 $ sudo pip install -Ur requirements.txt
 $ ./browbeat.sh test01
 ```
diff --git a/requirements.txt b/requirements.txt
index b5ada70bf..e99c3ff14 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,5 @@
 ansible
+matplotlib
 
 # For pbench-agent compatibility:
 configtools