diff -Nru utf8proc-2.7.0/debian/changelog utf8proc-2.7.0/debian/changelog
--- utf8proc-2.7.0/debian/changelog	2021-12-21 14:29:13.000000000 +0000
+++ utf8proc-2.7.0/debian/changelog	2021-12-24 05:29:20.000000000 +0000
@@ -1,3 +1,9 @@
+utf8proc (2.7.0-1+rpi1) bookworm-staging; urgency=medium
+
+  * Force C.utf-8 locale.
+
+ -- root <Peter Michael Green <plugwash@raspbian.org>  Fri, 24 Dec 2021 05:29:20 +0000
+
 utf8proc (2.7.0-1) unstable; urgency=medium
 
   [ Debian Janitor ]
diff -Nru utf8proc-2.7.0/debian/rules utf8proc-2.7.0/debian/rules
--- utf8proc-2.7.0/debian/rules	2021-12-21 13:32:38.000000000 +0000
+++ utf8proc-2.7.0/debian/rules	2021-12-24 05:29:20.000000000 +0000
@@ -1,5 +1,6 @@
 #!/usr/bin/make -f
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+export LC_ALL=C.UTF-8
 
 %:
 	dh $@