diff --git a/debian/gbp.conf b/debian/gbp.conf
index a81856d92566c185fdb0984beb8e63779b23dbcb..75a2d4539b0bb20c4da8107d09fedc5ad1253bd5 100644
--- a/debian/gbp.conf
+++ b/debian/gbp.conf
@@ -1,13 +1,13 @@
 [DEFAULT]
-debian-branch = debian/buster
-upstream-branch = upstream/buster
-debian-tag = debian/buster/%(version)s
-upstream-tag = upstream/buster/%(version)s
+debian-branch = debian/bullseye
+upstream-branch = upstream/bullseye
+debian-tag = debian/bullseye/%(version)s
+upstream-tag = upstream/bullseye/%(version)s
 
 [buildpackage]
-git-debian-branch = debian/buster
-git-debian-tag = debian/buster/%(version)s
-git-upstream-tag = upstream/buster/%(version)s
+git-debian-branch = debian/bullseye
+git-debian-tag = debian/bullseye/%(version)s
+git-upstream-tag = upstream/bullseye/%(version)s
 
 [pull]
 pristine-tar = True