diff --git a/src/migrations/0023_postgresql_11_to_13.py b/src/migrations/0029_postgresql_13_to_15.py
similarity index 73%
rename from src/migrations/0023_postgresql_11_to_13.py
rename to src/migrations/0029_postgresql_13_to_15.py
index 086b17af7..dca52c189 100644
--- a/src/migrations/0023_postgresql_11_to_13.py
+++ b/src/migrations/0029_postgresql_13_to_15.py
@@ -13,9 +13,9 @@ logger = getLogger("yunohost.migration")
 
 
 class MyMigration(Migration):
-    "Migrate DBs from Postgresql 11 to 13 after migrating to Bullseye"
+    "Migrate DBs from Postgresql 13 to 15 after migrating to Bookworm"
 
-    dependencies = ["migrate_to_bullseye"]
+    dependencies = ["migrate_to_bookworm"]
 
     def run(self):
         if (
@@ -27,37 +27,37 @@ class MyMigration(Migration):
             logger.info("No YunoHost app seem to require postgresql... Skipping!")
             return
 
-        if not self.package_is_installed("postgresql-11"):
-            logger.warning(m18n.n("migration_0023_postgresql_11_not_installed"))
+        if not self.package_is_installed("postgresql-13"):
+            logger.warning(m18n.n("migration_0029_postgresql_13_not_installed"))
             return
 
-        if not self.package_is_installed("postgresql-13"):
-            raise YunohostValidationError("migration_0023_postgresql_13_not_installed")
+        if not self.package_is_installed("postgresql-15"):
+            raise YunohostValidationError("migration_0029_postgresql_15_not_installed")
 
-        # Make sure there's a 11 cluster
+        # Make sure there's a 13 cluster
         try:
-            self.runcmd("pg_lsclusters | grep -q '^11 '")
+            self.runcmd("pg_lsclusters | grep -q '^13 '")
         except Exception:
             logger.warning(
-                "It looks like there's not active 11 cluster, so probably don't need to run this migration"
+                "It looks like there's not active 13 cluster, so probably don't need to run this migration"
             )
             return
 
         if not space_used_by_directory(
-            "/var/lib/postgresql/11"
+            "/var/lib/postgresql/13"
         ) > free_space_in_directory("/var/lib/postgresql"):
             raise YunohostValidationError(
-                "migration_0023_not_enough_space", path="/var/lib/postgresql/"
+                "migration_0029_not_enough_space", path="/var/lib/postgresql/"
             )
 
         self.runcmd("systemctl stop postgresql")
         time.sleep(3)
         self.runcmd(
-            "LC_ALL=C pg_dropcluster --stop 13 main || true"
-        )  # We do not trigger an exception if the command fails because that probably means cluster 13 doesn't exists, which is fine because it's created during the pg_upgradecluster)
+            "LC_ALL=C pg_dropcluster --stop 15 main || true"
+        )  # We do not trigger an exception if the command fails because that probably means cluster 15 doesn't exists, which is fine because it's created during the pg_upgradecluster)
         time.sleep(3)
-        self.runcmd("LC_ALL=C pg_upgradecluster -m upgrade 11 main")
-        self.runcmd("LC_ALL=C pg_dropcluster --stop 11 main")
+        self.runcmd("LC_ALL=C pg_upgradecluster -m upgrade 13 main")
+        self.runcmd("LC_ALL=C pg_dropcluster --stop 13 main")
         self.runcmd("systemctl start postgresql")
 
     def package_is_installed(self, package_name):