diff -u weston-9.0.0/debian/changelog weston-9.0.0/debian/changelog
--- weston-9.0.0/debian/changelog
+++ weston-9.0.0/debian/changelog
@@ -1,3 +1,9 @@
+weston (9.0.0-1+rpi1) bullseye-staging; urgency=medium
+
+  * Add breaks/replaces on libweston-8-dev. (Closes: 970134)
+
+ -- Peter Michael Green <plugwash@raspbian.org>  Thu, 17 Sep 2020 12:23:32 +0000
+
 weston (9.0.0-1) unstable; urgency=medium
 
   * Release to unstable.
diff -u weston-9.0.0/debian/control weston-9.0.0/debian/control
--- weston-9.0.0/debian/control
+++ weston-9.0.0/debian/control
@@ -92,8 +92,10 @@
          libxkbcommon-dev,
          ${misc:Depends},
          ${shlibs:Depends}
-Replaces: weston (<< 1.12.0-1)
-Breaks: weston (<< 1.12.0-1)
+Replaces: weston (<< 1.12.0-1),
+          libweston-8-dev
+Breaks: weston (<< 1.12.0-1),
+        libweston-8-dev
 Description: reference implementation of a wayland compositor (shared libs)
  Part of the Wayland project is also the Weston reference implementation
  of a Wayland compositor. Weston can run as an X client or under Linux