diff --git a/roles/2-common/tasks/packages.yml b/roles/2-common/tasks/packages.yml
index f64c25936..43b1edffe 100644
--- a/roles/2-common/tasks/packages.yml
+++ b/roles/2-common/tasks/packages.yml
@@ -71,6 +71,7 @@
     - pandoc
     - lynx
     - ntfs-3g
+    - flock
 
 #- name: Install pip as a commonly required package management system
 #  command: curl https://bootstrap.pypa.io/get-pip.py -o {{ downloads_dir }}/get-pip.py