diff --git a/debian/changelog b/debian/changelog
index b911ccb38..6f79734eb 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -185,6 +185,13 @@ yunohost (11.0.2) testing; urgency=low
 
  -- Alexandre Aubin <alex.aubin@mailoo.org>  Wed, 19 Jan 2022 20:52:39 +0100
 
+yunohost (4.4.2.9) stable; urgency=low
+
+  - apt helper: fix edge case with equivs package being flagged hold because of buster->bullseye migration (b306df2c)
+  - bullseye migration: fix check about free space in /boot/ ... (a2d4abc1)
+
+ -- Alexandre Aubin <alex.aubin@mailoo.org>  Thu, 18 Aug 2022 19:24:47 +0200
+
 yunohost (4.4.2.7) stable; urgency=low
 
   - upgrades: ignore boring insserv warnings during apt commands (87f0eff9)
diff --git a/helpers/apt b/helpers/apt
index 02c3a0ab7..1ff602b08 100644
--- a/helpers/apt
+++ b/helpers/apt
@@ -361,6 +361,13 @@ ynh_remove_app_dependencies() {
         current_dependencies=${current_dependencies// | /|}
     fi
 
+    # Edge case where the app dep may be on hold,
+    # cf https://forum.yunohost.org/t/migration-error-cause-of-ffsync/20675/4
+    if apt-mark showhold | grep -q -w ${dep_app}-ynh-deps
+    then
+        apt-mark unhold ${dep_app}-ynh-deps
+    fi
+
     ynh_package_autopurge ${dep_app}-ynh-deps	# Remove the fake package and its dependencies if they not still used.
 }
 
diff --git a/src/migrations/0021_migrate_to_bullseye.py b/src/migrations/0021_migrate_to_bullseye.py
index 6b1d7c30b..e3e4ddcc8 100644
--- a/src/migrations/0021_migrate_to_bullseye.py
+++ b/src/migrations/0021_migrate_to_bullseye.py
@@ -393,9 +393,10 @@ class MyMigration(Migration):
         if free_space_in_directory("/var/") / (1024**3) < 1.0:
             raise YunohostError("migration_0021_not_enough_free_space")
 
-        if free_space_in_directory("/boot/") / (120**3) < 1.0:
+        # Have > 70 MB free space on /var/ ?
+        if free_space_in_directory("/boot/") / (1024**2) < 70.0:
             raise YunohostError(
-                "/boot/ has less than 120MB available. This will probably trigger a crash during the upgrade because a new kernel needs to be installed. Please look for advice on the forum on how to remove old, unused kernels to free up some space in /boot/.",
+                "/boot/ has less than 70MB available. This will probably trigger a crash during the upgrade because a new kernel needs to be installed. Please look for advice on the forum on how to remove old, unused kernels to free up some space in /boot/.",
                 raw_msg=True,
             )