diff --git a/scripts/backup b/scripts/backup
index d00d2a0..66f7b2c 100755
--- a/scripts/backup
+++ b/scripts/backup
@@ -15,11 +15,6 @@ source /usr/share/yunohost/helpers
 #=================================================
 ynh_print_info --message="Declaring files to be backed up..."
 
-### N.B. : the following 'ynh_backup' calls are only a *declaration* of what needs
-### to be backuped and not an actual copy of any file. The actual backup that
-### creates and fill the archive with the files happens in the core after this
-### script is called. Hence ynh_backups calls takes basically 0 seconds to run.
-
 #=================================================
 # BACKUP THE APP MAIN DIR
 #=================================================
@@ -62,20 +57,11 @@ ynh_backup --src_path="/etc/systemd/system/$app-consumer.service"
 ynh_backup --src_path="/etc/systemd/system/$app-scheduler.service"
 ynh_backup --src_path="/etc/systemd/system/$app-task-queue.service"
 
-#=================================================
-# BACKUP VARIOUS FILES
-#=================================================
-
-#ynh_backup --src_path="/etc/$app/"
-
 #=================================================
 # BACKUP THE MYSQL DATABASE
 #=================================================
 ynh_print_info --message="Backing up the MySQL database..."
 
-### (However, things like MySQL dumps *do* take some time to run, though the
-### copy of the generated dump to the archive still happens later)
-
 ynh_psql_dump_db --database="$db_name" > db.sql
 
 #=================================================
diff --git a/scripts/install b/scripts/install
index f5f87df..cf18621 100755
--- a/scripts/install
+++ b/scripts/install
@@ -7,7 +7,6 @@
 #=================================================
 
 source _common.sh
-source ynh_redis
 source /usr/share/yunohost/helpers
 
 #=================================================
diff --git a/scripts/remove b/scripts/remove
index 7e0bb1a..2b4056f 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -7,7 +7,6 @@
 #=================================================
 
 source _common.sh
-source ynh_redis
 source /usr/share/yunohost/helpers
 
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index 98f6323..4c8aca0 100755
--- a/scripts/restore
+++ b/scripts/restore
@@ -8,7 +8,6 @@
 
 # Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
 source ../settings/scripts/_common.sh
-source ../settings/scripts/ynh_redis
 source /usr/share/yunohost/helpers
 
 #=================================================
@@ -19,10 +18,6 @@ ynh_script_progression --message="Loading additionnal settings..." --weight=1
 redis_db=$(ynh_redis_get_free_db)
 ynh_app_setting_set --app=$app --key=redis_db --value=$redis_db
 
-#=================================================
-# STANDARD RESTORATION STEPS
-#=================================================
-
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 6be9942..83600ab 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -7,14 +7,8 @@
 #=================================================
 
 source _common.sh
-source ynh_redis
 source /usr/share/yunohost/helpers
 
-#=================================================
-# CHECK VERSION
-#=================================================
-upgrade_type=$(ynh_check_app_version_changed)
-
 #=================================================
 # STANDARD UPGRADE STEPS
 #=================================================
@@ -48,13 +42,9 @@ fi
 #=================================================
 # DOWNLOAD, CHECK AND UNPACK SOURCE
 #=================================================
+ynh_script_progression --message="Upgrading source files..." --weight=1
 
-if [ "$upgrade_type" == "UPGRADE_APP" ]
-then
-	ynh_script_progression --message="Upgrading source files..." --weight=1
-
-	ynh_setup_source --dest_dir="$install_dir" --keep="paperless.conf"
-fi
+ynh_setup_source --dest_dir="$install_dir" --keep="paperless.conf"
 
 chmod 750 "$install_dir"
 chmod -R o-rwx "$install_dir"
@@ -73,7 +63,7 @@ ynh_add_nginx_config
 #=================================================
 # INSTALL PYTHON DEPENDENCIES
 #=================================================
-ynh_script_progression --message="Installing Python dependencies..."
+ynh_script_progression --message="Installing Python dependencies..." --weight=5
 
 pushd $install_dir
 	python3 -m venv venv
diff --git a/scripts/ynh_redis b/scripts/ynh_redis
deleted file mode 100644
index 0071247..0000000
--- a/scripts/ynh_redis
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/bin/bash
-
-# get the first available redis database
-#
-# usage: ynh_redis_get_free_db
-# | returns: the database number to use
-ynh_redis_get_free_db() {
-	local result max db
-	result=$(redis-cli INFO keyspace)
-
-	# get the num
-	max=$(cat /etc/redis/redis.conf | grep ^databases | grep -Eow "[0-9]+")
-
-	db=0
-	# default Debian setting is 15 databases
-	for i in $(seq 0 "$max")
-	do
-		if ! echo "$result" | grep -q "db$i"
-		then
-			db=$i
-			break 1
-		fi
-		db=-1
-	done
-
-	test "$db" -eq -1 && ynh_die --message="No available Redis databases..."
-
-	echo "$db"
-}
-
-# Create a master password and set up global settings
-# Please always call this script in install and restore scripts
-#
-# usage: ynh_redis_remove_db database
-# | arg: database - the database to erase
-ynh_redis_remove_db() {
-	local db=$1
-	redis-cli -n "$db" flushall
-}