diff --git a/scripts/upgrade b/scripts/upgrade
index 9c3e7192..c66aca3f 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -46,31 +46,6 @@ if [ -z "${app_key:-}" ]; then
 	ynh_app_setting_set --app="$app" --key=app_key --value="$app_key"
 fi
 
-if dpkg --compare-versions "0.9.0~ynh3" gt "$(ynh_read_manifest --manifest="/etc/yunohost/apps/$YNH_APP_INSTANCE_NAME/manifest.json" --manifest_key="version" || echo 1.0)" ; then
-	ynh_script_progression --message="Ensuring upgrade compatibility to 0.9.0~ynh3..."
-
-	ynh_script_progression --message="Configuring a systemd service..."
-	ynh_add_systemd_config --service="${app}-horizon" --template=horizon.conf
-fi
-
-if dpkg --compare-versions "0.10.9~ynh2" gt "$(ynh_read_manifest --manifest="/etc/yunohost/apps/$YNH_APP_INSTANCE_NAME/manifest.json" --manifest_key="version" || echo 1.0)" ; then
-	ynh_script_progression --message="Ensuring upgrade compatibility to 0.10.9~ynh2..."
-
-	ynh_script_progression --message="Stopping and removing the systemd service..."
-	ynh_remove_systemd_config --service="${app}-horizon"
-
-	ynh_script_progression --message="Creating log file..."
-	mkdir -p "/var/log/$app/"
-	touch "/var/log/$app/${app}-horizon.log"
-	chown -R $app: "/var/log/$app/"
-
-	ynh_script_progression --message="Configuring a supervisor service..."
-	ynh_add_supervisor_config --service="${app}-horizon" --template=horizon.conf
-
-	ynh_script_progression --message="Starting a supervisor service..."
-	ynh_supervisor_action --service_name="${app}-horizon" --action="start" --log_path="systemd" --line_match="success: ${app}-horizon"
-fi
-
 if dpkg --compare-versions "0.10.9~ynh3" gt "$(ynh_read_manifest --manifest="/etc/yunohost/apps/$YNH_APP_INSTANCE_NAME/manifest.json" --manifest_key="version" || echo 1.0)" ; then
 	ynh_script_progression --message="Ensuring upgrade compatibility to 0.10.9~ynh3..."
 
@@ -79,9 +54,6 @@ if dpkg --compare-versions "0.10.9~ynh3" gt "$(ynh_read_manifest --manifest="/et
 		ynh_script_progression --message="Removing ${app}-horizon service..."
 		yunohost service remove "${app}-horizon"
 	fi
-
-	ynh_script_progression --message="Integrating service in YunoHost..."
-	yunohost service add "supervisor" --description="Supervisor daemon for $app" --log="/var/log/$app/${app}-horizon.log"
 fi
 
 # Fix old email configs