diff --git a/manifest.toml b/manifest.toml
index d090fda..a21d408 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -83,9 +83,6 @@ ram.runtime = "50M"
 
     [resources.install_dir]
 
-    [resources.data_dir]
-    subdirs =["_data", "galleries", "upload"]
-
     [resources.permissions]
     main.url = "/"
 
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 0e701fc..944a65e 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -8,16 +8,6 @@
 # PERSONAL HELPERS
 #=================================================
 
-_create_data_dirs_if_required() {
-    dirs=(_data galleries upload)
-    for dir in "${dirs[@]}"; do
-        if [ ! -d "$data_dir/$dir" ]; then
-            rsync -a "$install_dir/$dir/" "$data_dir/$dir/"
-        fi
-        ynh_secure_remove "$install_dir/$dir"
-    done
-}
-
 #=================================================
 # EXPERIMENTAL HELPERS
 #=================================================
diff --git a/scripts/backup b/scripts/backup
index 82ac839..773fbb3 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -19,12 +19,6 @@ ynh_print_info --message="Declaring files to be backed up..."
 
 ynh_backup --src_path="$install_dir"
 
-#=================================================
-# BACKUP THE DATA DIR
-#=================================================
-
-ynh_backup --src_path="$data_dir" --is_big
-
 #=================================================
 # BACKUP THE SYSTEM CONFIGURATION
 #=================================================
diff --git a/scripts/install b/scripts/install
index 9453cf1..f50651a 100644
--- a/scripts/install
+++ b/scripts/install
@@ -26,19 +26,6 @@ ynh_setup_source --dest_dir="$install_dir/plugins" --source_id=log_failed_logins
 chmod -R o-rwx "$install_dir"
 chown -R "$app:www-data" "$install_dir"
 
-#=================================================
-# CREATE LINK TO DATA DIRECTORY
-#=================================================
-ynh_script_progression --message="Creating a data directory..."
-
-ln -sd $data_dir/_data $install_dir/_data
-ln -sd $data_dir/upload $install_dir/upload
-ln -sd $data_dir/galleries $install_dir/galleries
-
-chmod 750 "$data_dir"
-chmod -R o-rwx "$data_dir"
-chown -R $app:www-data "$data_dir"
-
 #=================================================
 # SYSTEM CONFIGURATIONS
 #=================================================
diff --git a/scripts/restore b/scripts/restore
index f492243..e814040 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -18,15 +18,6 @@ ynh_restore_file --origin_path="$install_dir"
 chmod -R o-rwx "$install_dir"
 chown -R "$app:www-data" "$install_dir"
 
-#=================================================
-# RESTORE THE DATA DIRECTORY
-#=================================================
-ynh_script_progression --message="Restoring the data directory..." --weight=2
-
-ynh_restore_file --origin_path="$data_dir" --not_mandatory
-
-chown -R "$app:www-data" "$data_dir"
-
 #=================================================
 # RESTORE THE MYSQL DATABASE
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 6227e48..42bdf7f 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -25,7 +25,7 @@ fi
 #=================================================
 ynh_script_progression --message="Upgrading source files..." --weight=3
 
-ynh_setup_source --dest_dir="$install_dir" --full_replace=1 --keep="local/config/config.inc.php local/config/database.inc.php"
+ynh_setup_source --dest_dir="$install_dir" --full_replace=1 --keep="local/config/config.inc.php local/config/database.inc.php _data galleries upload"
 ynh_setup_source --dest_dir="$install_dir/plugins/Ldap_Login" --source_id=ldap_plugin --full_replace=1
 ynh_setup_source --dest_dir="$install_dir/plugins" --source_id=log_failed_logins_plugin --full_replace=1