diff -Nru volume-key-0.3.12/debian/changelog volume-key-0.3.12/debian/changelog
--- volume-key-0.3.12/debian/changelog	2018-10-09 05:33:07.000000000 +0000
+++ volume-key-0.3.12/debian/changelog	2020-02-06 20:17:10.000000000 +0000
@@ -1,3 +1,9 @@
+volume-key (0.3.12-2+rpi1) bullseye-staging; urgency=medium
+
+  * Add build-depends on dh-python.
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Thu, 06 Feb 2020 20:17:10 +0000
+
 volume-key (0.3.12-2) unstable; urgency=medium
 
   * Team upload
diff -Nru volume-key-0.3.12/debian/control volume-key-0.3.12/debian/control
--- volume-key-0.3.12/debian/control	2018-10-09 05:33:07.000000000 +0000
+++ volume-key-0.3.12/debian/control	2020-02-06 20:17:02.000000000 +0000
@@ -12,6 +12,7 @@
                swig,
                libnss3-tools,
                python3-dev,
+               dh-python,
 Standards-Version: 4.2.1
 Rules-Requires-Root: no
 Vcs-Browser: https://salsa.debian.org/utopia-team/volume-key