diff -Nru grads-2.2.1/debian/changelog grads-2.2.1/debian/changelog
--- grads-2.2.1/debian/changelog	2021-10-29 10:17:12.000000000 +0000
+++ grads-2.2.1/debian/changelog	2022-05-11 19:10:38.000000000 +0000
@@ -1,8 +1,9 @@
-grads (3:2.2.1-4build1) jammy; urgency=medium
+grads (3:2.2.1-5) unstable; urgency=medium
 
-  * No-change rebuild against libnetcdf19
+  * Transition: move from libgrib2c-dev to libg2c-dev
+  * Standards-Version: 4.6.0
 
- -- Graham Inggs <ginggs@ubuntu.com>  Fri, 29 Oct 2021 10:17:12 +0000
+ -- Alastair McKinstry <mckinstry@debian.org>  Wed, 11 May 2022 20:10:38 +0100
 
 grads (3:2.2.1-4) unstable; urgency=medium
 
diff -Nru grads-2.2.1/debian/control grads-2.2.1/debian/control
--- grads-2.2.1/debian/control	2021-02-02 09:27:21.000000000 +0000
+++ grads-2.2.1/debian/control	2022-05-11 19:10:38.000000000 +0000
@@ -7,7 +7,7 @@
  libeditreadline-dev,
  libgeotiff-dev, 
  libssl-dev,
- libgrib2c-dev (>= 1.6.0-3), 
+ libg2c-dev, 
  libnetcdf-dev,  netcdf-bin,
  zlib1g-dev, 
  libudunits2-dev,  
@@ -23,7 +23,7 @@
  libaec-dev,
  libcairo2-dev
 Build-Conflicts: autoconf2.13
-Standards-Version: 4.5.1
+Standards-Version: 4.6.0
 Homepage: http://cola.gmu.edu/grads
 Vcs-Browser: https://salsa.debian.org:/science-team/grads.git
 Vcs-Git: https://salsa.debian.org:/science-team/grads.git