diff --git a/Makefile b/Makefile
index e551a6d..8fb7425 100644
--- a/Makefile
+++ b/Makefile
@@ -18,7 +18,7 @@ uninstall:
 	rm /etc/cron.daily/eobuilder
 
 chroots:
-	for DIST in buster bullseye; do \
+	for DIST in bullseye bookworm; do \
 		for ARCH in i386 amd64; do \
 			mkdir -p /var/cache/pbuilder/$$DIST-$$ARCH/base.cow; \
 			DIST=$$DIST ARCH=$$ARCH cowbuilder --create --configfile ./pbuilderrc --keyring ./entrouvert.gpg; \
@@ -26,7 +26,7 @@ chroots:
 	done
 
 chroots-update:
-	for DIST in buster bullseye; do \
+	for DIST in bullseye bookworm; do \
 		for ARCH in i386 amd64; do \
 			mkdir -p /var/cache/pbuilder/$$DIST-$$ARCH/base.cow; \
 			DIST=$$DIST ARCH=$$ARCH cowbuilder --update --configfile ./pbuilderrc --keyring ./entrouvert.gpg; \
diff --git a/dput.cf b/dput.cf
index 5daabef..67007b5 100644
--- a/dput.cf
+++ b/dput.cf
@@ -2,14 +2,14 @@
 method = scp
 fqdn = deb.entrouvert.org
 
-[buster-eobuilder]
-incoming = /var/vhosts/deb.entrouvert.org/incoming/buster-eobuilder
-
 [bullseye-eobuilder]
 incoming = /var/vhosts/deb.entrouvert.org/incoming/bullseye-eobuilder
 
-[buster-hotfix]
-incoming = /var/vhosts/deb.entrouvert.org/incoming/buster-hotfix
+[bookworm-eobuilder]
+incoming = /var/vhosts/deb.entrouvert.org/incoming/bookworm-eobuilder
 
 [bullseye-hotfix]
 incoming = /var/vhosts/deb.entrouvert.org/incoming/bullseye-hotfix
+
+[bookworm-hotfix]
+incoming = /var/vhosts/deb.entrouvert.org/incoming/bookworm-hotfix
diff --git a/eobuilder/cmdline.py b/eobuilder/cmdline.py
index 95b27ac..fee3c05 100644
--- a/eobuilder/cmdline.py
+++ b/eobuilder/cmdline.py
@@ -27,7 +27,7 @@ class MultipleOption(Option):
 def parse_cmdline():
     parser = OptionParser(
         option_class=MultipleOption,
-        usage='usage: %prog [OPTIONS] -d [bullseye|,buster] GIT_REPOSITORY_NAME',
+        usage='usage: %prog [OPTIONS] -d [bullseye|,bookworm] GIT_REPOSITORY_NAME',
     )
     parser.add_option(
         "-a",
@@ -47,7 +47,7 @@ def parse_cmdline():
         dest="distrib",
         metavar='DISTRIBUTIONS',
         default=[],
-        help="DISTRIBUTIONS: bullseye and/or buster",
+        help="DISTRIBUTIONS: bullseye and/or bookworm",
     )
     parser.add_option(
         "-f", "--force", action="store_true", dest="force", default=False, help="force a new build"
@@ -104,7 +104,7 @@ def parse_cmdline():
         default=[],
         dest="repositories",
         metavar='DISTRIBUTION:REPOSITORY, DISTRIBUTION:REPOSITORY',
-        help="DISTRIBUTION:REPOSITORY: bullseye:bullseye-eobuilder, buster:buster-eobuilder",
+        help="DISTRIBUTION:REPOSITORY: bullseye:bullseye-eobuilder, bookworm:bookworm-eobuilder",
     )
     parser.add_option(
         "--no-dput",
diff --git a/eobuilder/settings.py b/eobuilder/settings.py
index 371d0e6..a8d4765 100644
--- a/eobuilder/settings.py
+++ b/eobuilder/settings.py
@@ -10,12 +10,14 @@ EOBUILDER_TMP = "/var/tmp/eobuilder"
 REPOSITORY_URL = "deb.entrouvert.org"
 GIT_REPOSITORY_URL = "git+ssh://git@repos.entrouvert.org"
 DEBIAN_VERSIONS = {
+    "bookworm": "120",
     "bullseye": "110",
     "buster": "100",
     "stretch": "90",
 }
 
 DEFAULT_UNSTABLE_REPOSITORIES = {
+    "bookworm": "bookworm-eobuilder",
     "bullseye": "bullseye-eobuilder",
     "buster": "buster-eobuilder",
     "stretch": "stretch-eobuilder",
@@ -24,6 +26,7 @@ DEFAULT_UNSTABLE_REPOSITORIES = {
 # Paste new tag into repositories
 # Automatically add new tag in this repositories
 DEFAULT_TESTING_REPOSITORIES = {
+    "bookworm": ["bookworm-testing"],
     "bullseye": ["bullseye-testing"],
     "buster": ["buster-testing"],
     "stretch": ["stretch-testing"],
@@ -31,6 +34,7 @@ DEFAULT_TESTING_REPOSITORIES = {
 
 # Hotfix repositories
 HOTFIX_REPOSITORIES = {
+    "bookworm": "bookworm-hotfix",
     "bullseye": "bullseye-hotfix",
     "buster": "buster-hotfix",
     "stretch": "stretch-hotfix",
diff --git a/pbuilderrc b/pbuilderrc
index 35727b7..2bc840c 100644
--- a/pbuilderrc
+++ b/pbuilderrc
@@ -1,9 +1,9 @@
 # Codenames for Debian suites according to their alias. Update these when
 # needed.
 UNSTABLE_CODENAME="sid"
-TESTING_CODENAME="bookworm"
-STABLE_CODENAME="bullseye"
-OLDSTABLE_CODENAME="buster"
+TESTING_CODENAME="trixie"
+STABLE_CODENAME="bookworm"
+OLDSTABLE_CODENAME="bullseye"
 STABLE_BACKPORTS_SUITE="$STABLE_CODENAME-backports"
 
 # Use cowbuilder