diff --git a/locales/en.json b/locales/en.json
index 04aa5926a..7693e601d 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -570,6 +570,7 @@
     "main_domain_change_failed": "Unable to change the main domain",
     "main_domain_changed": "The main domain has been changed",
     "migration_0027_cleaning_up": "Cleaning up cache and packages not useful anymore…",
+    "migration_0027_delayed_api_restart": "The YunoHost API will automatically be restarted in 15 seconds. It may be unavailable for a few seconds, and then you will have to login again.",
     "migration_0027_general_warning": "Please note that this migration is a delicate operation. The YunoHost team did its best to review and test it, but the migration might still break parts of the system or its apps.\n\nTherefore, it is recommended to:\n    - Perform a backup of any critical data or app. More info on https://yunohost.org/backup;\n    - Be patient after launching the migration: Depending on your Internet connection and hardware, it might take up to a few hours for everything to upgrade.",
     "migration_0027_main_upgrade": "Starting main upgrade…",
     "migration_0027_modified_files": "Please note that the following files were found to be manually modified and might be overwritten following the upgrade: {manually_modified_files}",
diff --git a/src/migrations/0027_migrate_to_bookworm.py b/src/migrations/0027_migrate_to_bookworm.py
index 9ff497398..17b252871 100644
--- a/src/migrations/0027_migrate_to_bookworm.py
+++ b/src/migrations/0027_migrate_to_bookworm.py
@@ -1,7 +1,9 @@
 import glob
 import os
+import subprocess
+from time import sleep
 
-from moulinette import m18n
+from moulinette import Moulinette, m18n
 from yunohost.utils.error import YunohostError
 from moulinette.utils.process import check_output
 from moulinette.utils.filesystem import read_file, write_to_file
@@ -11,7 +13,7 @@ from yunohost.tools import (
     tools_update,
 )
 from yunohost.app import unstable_apps
-from yunohost.regenconf import manually_modified_files
+from yunohost.regenconf import manually_modified_files, regen_conf
 from yunohost.utils.system import (
     free_space_in_directory,
     get_ynh_package_version,
@@ -175,10 +177,20 @@ class MyMigration(Migration):
         apps_packages = self.get_apps_equivs_packages()
         aptitude_with_progress_bar(f"hold yunohost moulinette ssowat yunohost-admin {' '.join(apps_packages)}")
 
-        aptitude_with_progress_bar("upgrade cron --show-why -y -o APT::Force-LoopBreak=1 -o Dpkg::Options::='--force-confold'")
+        # Dirty hack to be able to remove rspamd because it's causing too many issues due to libluajit ...
+        command = "sed -i /var/lib/dpkg/status -e 's@rspamd, @@g'"
+        logger.debug(f"Running: {command}")
+        os.system(command)
+
+        aptitude_with_progress_bar("upgrade cron rspamd- libluajit-5.1-2- --show-why -o APT::Force-LoopBreak=1 -o Dpkg::Options::='--force-confold'")
 
         # FIXME : find a way to simulate and validate the upgrade first
-        aptitude_with_progress_bar("full-upgrade --show-why -y -o Dpkg::Options::='--force-confold'")
+        aptitude_with_progress_bar("full-upgrade --show-why -o Dpkg::Options::='--force-confold'")
+
+        # Force regenconf of nsswitch because for some reason
+        # /etc/nsswitch.conf is reset despite the --force-confold? It's a
+        # disaster because then admins cannot "sudo" >_> ...
+        regen_conf(names=["nsswitch"], force=True)
 
         if self.debian_major_version() == N_CURRENT_DEBIAN:
             raise YunohostError("migration_0027_still_on_bullseye_after_main_upgrade")
@@ -208,8 +220,7 @@ class MyMigration(Migration):
         aptitude_with_progress_bar(f"unhold yunohost moulinette ssowat yunohost-admin {' '.join(apps_packages)}")
 
         # FIXME : find a way to simulate and validate the upgrade first
-        # FIXME : why were libluajit needed in the first place ?
-        aptitude_with_progress_bar("full-upgrade --show-why yunohost yunohost-admin moulinette ssowat libluajit-5.1-2- libluajit-5.1-common- -y -o Dpkg::Options::='--force-confold'")
+        aptitude_with_progress_bar("full-upgrade --show-why yunohost yunohost-admin moulinette ssowat -o Dpkg::Options::='--force-confold'")
 
         #cmd = "LC_ALL=C"
         #cmd += " DEBIAN_FRONTEND=noninteractive"
@@ -230,6 +241,16 @@ class MyMigration(Migration):
         #postupgradecmds += "echo 'Restarting nginx...' >&2\n"
         #postupgradecmds += "systemctl restart nginx\n"
 
+        # If running from the webadmin, restart the API after a delay
+        if Moulinette.interface.type == "api":
+            logger.warning(m18n.n("migration_0027_delayed_api_restart"))
+            sleep(5)
+            # Restart the API after 10 sec (at now doesn't support sub-minute times...)
+            # We do this so that the API / webadmin still gets the proper HTTP response
+            cmd = 'at -M now >/dev/null 2>&1 <<< "sleep 10; systemctl restart nginx yunohost-api"'
+            # For some reason subprocess doesn't like the redirections so we have to use bash -c explicity...
+            subprocess.check_call(["bash", "-c", cmd])
+
     def debian_major_version(self):
         # The python module "platform" and lsb_release are not reliable because
         # on some setup, they may still return Release=9 even after upgrading to
diff --git a/src/utils/system.py b/src/utils/system.py
index 105aea704..9b6de576c 100644
--- a/src/utils/system.py
+++ b/src/utils/system.py
@@ -20,6 +20,7 @@ import re
 import os
 import logging
 
+from moulinette import Moulinette
 from moulinette.utils.process import check_output
 from yunohost.utils.error import YunohostError
 
@@ -283,18 +284,27 @@ def aptitude_with_progress_bar(cmd):
         lambda l: log_apt_status_to_progress_bar(l.rstrip()),
     )
 
+    original_cmd = cmd
     cmd = (
         f'LC_ALL=C DEBIAN_FRONTEND=noninteractive APT_LISTCHANGES_FRONTEND=none aptitude {cmd} --quiet=2 -o=Dpkg::Use-Pty=0 -o "APT::Status-Fd=$YNH_STDINFO"'
     )
 
+    # If upgrading yunohost from the API, delay the Yunohost-api restart
+    # (this should be the last time we need it before bookworm, because on bookworm, yunohost-admin cookies will be persistent upon api restart)
+    if " yunohost " in cmd and Moulinette.interface.type == "api":
+        cmd = "YUNOHOST_API_RESTART_WILL_BE_HANDLED_BY_YUNOHOST=yes " + cmd
+
     logger.debug(f"Running: {cmd}")
 
+    read, write = os.pipe()
+    os.write(write, b"y\ny\ny")
+    os.close(write)
     ret = call_async_output(cmd, callbacks, shell=True)
 
     if log_apt_status_to_progress_bar.previous_package is not None and ret == 0:
         log_apt_status_to_progress_bar("done::100:Done")
     elif ret != 0:
-        raise YunohostError(f"Failed to run command 'aptitude {cmd}'", raw_msg=True)
+        raise YunohostError(f"Failed to run command 'aptitude {original_cmd}'", raw_msg=True)
 
 
 def _apt_log_line_is_relevant(line):