debian/changelog

+libgdal-grass (2.2.3-3~bionic1) bionic; urgency=medium
+
+  * Rebuild for bionic.
+
+ -- Martin Landa <landa.martin@gmail.com>  Thu, 14 Jun 2018 22:38:42 +0200
+
 libgdal-grass (2.2.2-1~xenial5) xenial; urgency=medium
 
   * Rebuild for xenial.

debian/control

@@ -9,7 +9,7 @@ Build-Depends: debhelper (>= 9),
                d-shlibs,
                grass (>= 7.4.1),
                grass-dev (>= 7.4.1),
-               libgdal-dev (>= 2.2.2),
+               libgdal-dev (>= 2.2.3),
                libproj-dev,
                libpq-dev,
                pkg-config

debian/gbp.conf

@@ -6,7 +6,7 @@ upstream-branch = upstream
 
 # The default name for the Debian branch is "master".
 # Change it if the name is different (for instance, "debian/unstable").
-debian-branch = ubuntu/xenial
+debian-branch = ubuntu/bionic
 
 # git-import-orig uses the following names for the upstream tags.
 # Change the value if you are not using git-import-orig