=== modified file 'debian/control'
--- debian/control	2016-06-15 14:48:27 +0000
+++ debian/control	2016-07-21 15:08:06 +0000
@@ -116,6 +116,8 @@
          uidmap,
          ${misc:Depends},
          ${python3:Depends}
+Replaces: libertine-tools (<< 1.3.1)
+Breaks: libertine-tools (<< 1.3.1)
 Description: Python3 scripts for the Libertine application sandbox
  This package provides the LXC-based container back end module for the
  Libertine sandbox.  It requires support for unprivileged LXC containers in the