diff --git a/scripts/_common.sh b/scripts/_common.sh
index ae61994..838ccf5 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -452,45 +452,3 @@ ynh_cleanup_ruby () {
         ynh_secure_remove --file="/etc/profile.d/rbenv.sh"
     fi
 }
-
-#=================================================
-# REDIS HELPERS
-#=================================================
-
-# 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
-}
diff --git a/scripts/install b/scripts/install
index b805edd..eb0b11d 100644
--- a/scripts/install
+++ b/scripts/install
@@ -155,9 +155,6 @@ ynh_script_progression --message="Adding a configuration file..." --weight=1
 database_yml="$final_path/config/database.yml"
 diaspora_toml="$final_path/config/diaspora.toml"
 
-redis_namespace=${app}_production
-ynh_app_setting_set --app="$app" --key=redis_namespace --value="$redis_namespace"
-
 secret_key_base=$(ynh_string_random --length=128)
 ynh_app_setting_set --app="$app" --key=secret_key_base --value="$secret_key_base"
 
diff --git a/scripts/upgrade b/scripts/upgrade
index f3c206a..4540205 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -22,7 +22,6 @@ admin=$(ynh_app_setting_get --app=$app --key=admin)
 final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
 db_user=$(ynh_app_setting_get --app=$app --key=db_user)
-redis_namespace=$(ynh_app_setting_get --app=$app --key=db_name)
 db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
 port_web=$(ynh_app_setting_get --app=$app --key=port_web)
 secret_key_base=$(ynh_app_setting_get --app=$app --key=secret_key_base)
@@ -86,12 +85,6 @@ if [[ -z "$db_pwd" ]]; then
 	ynh_replace_string --match_string="DB_PASS=" --replace_string="DB_PASS=${db_pwd}" --target_file="$config"
 fi
 
-# If redis_namespace doesn't exist, create it
-if [[ -z "$redis_namespace" ]]; then
-	redis_namespace=${app}_production
-	ynh_app_setting_set --app=$app --key=redis_namespace --value=$redis_namespace
-fi
-
 # If secret_key_base doesn't exist, retrieve it or create it
 if [[ -z "$secret_key_base" ]]; then
 	secret_key_base=$(grep -oP "SECRET_KEY_BASE=\K\w+" $config)
@@ -102,6 +95,7 @@ if [[ -z "$secret_key_base" ]]; then
 fi
 
 ynh_remove_extra_repo
+ynh_app_setting_delete --app=$app --key=redis_namespace
 
 #=================================================
 # CREATE DEDICATED USER
@@ -164,9 +158,6 @@ ynh_script_progression --message="Updating a configuration file..." --weight=1
 database_yml="$final_path/config/database.yml"
 diaspora_toml="$final_path/config/diaspora.toml"
 
-redis_namespace=${app}_production
-ynh_app_setting_set --app="$app" --key=redis_namespace --value="$redis_namespace"
-
 secret_key_base=$(ynh_string_random --length=128)
 ynh_app_setting_set --app="$app" --key=secret_key_base --value="$secret_key_base"