diff --git a/conf/config.php b/conf/config.php
index 0ab80bd..0773c50 100644
--- a/conf/config.php
+++ b/conf/config.php
@@ -8,10 +8,12 @@ return array(
         'username' => '__BD_NAME__',
         'password' => '__BD_PWD__',
     ),
+
     'storage'  => array(
         'driver' => 'local',
         'path'   => '__DATA_DIR__',
     ),
+
     'ldap' => array(
         'enabled' => true,
         'schema' => 'ldap',
diff --git a/conf/extra_php-fpm.conf b/conf/extra_php-fpm.conf
index 9dacb8a..1f6b70e 100644
--- a/conf/extra_php-fpm.conf
+++ b/conf/extra_php-fpm.conf
@@ -1,4 +1,4 @@
 ; Additional php.ini defines, specific to this pool of workers.
 
-php_admin_value[upload_max_filesize] = 512M
-php_admin_value[post_max_size] = 512M
+php_admin_value[upload_max_filesize] = 1G
+php_admin_value[post_max_size] = 1G
diff --git a/conf/nginx.conf b/conf/nginx.conf
index e4bb875..305e968 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -6,7 +6,7 @@ location __PATH__/ {
 
   index index.html index.htm index.php;
 
-  client_max_body_size 512M;
+  client_max_body_size 1G;
 
   try_files $uri $uri/ __PATH__/index.php;
 
diff --git a/manifest.toml b/manifest.toml
index de08b81..9034afe 100644
--- a/manifest.toml
+++ b/manifest.toml
@@ -54,4 +54,7 @@ ram.runtime = "50M"
     main.url = "/"
 
     [resources.apt]
-    packages = "php8.2-sqlite3 php8.2-gd php8.2-fileinfo php8.2-zip php8.2-intl"
+    packages = "mariadb-server php8.2-intl php8.2-mysql php8.2-gd php8.2-fileinfo php8.2-zip php8.2-ldap"
+
+    [resources.database]
+    type = "mysql"
diff --git a/scripts/install b/scripts/install
index fa03ef3..28274c0 100755
--- a/scripts/install
+++ b/scripts/install
@@ -15,7 +15,9 @@ source /usr/share/yunohost/helpers
 ynh_script_progression --message="Setting up source files..." --weight=1
 
 ynh_setup_source --dest_dir="$install_dir"
+
 mkdir "$install_dir/storage"
+
 chown -R $app:www-data "$install_dir"
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 94685dd..3bc3252 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -24,11 +24,21 @@ then
 	ynh_script_progression --message="Upgrading source files..." --weight=1
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$install_dir"
+	ynh_setup_source --dest_dir="$install_dir" --keep="config.php"
 fi
 
 chown -R $app:www-data "$install_dir"
 
+#=================================================
+# XBACKBONE UPGRADE
+#=================================================
+ynh_script_progression --message="Install database" --weight=1
+
+pushd $install_dir
+	php$phpversion php/migrate --install
+	php$phpversion php/clean
+popd
+
 #=================================================
 # PHP-FPM CONFIGURATION
 #=================================================
diff --git a/tests.toml b/tests.toml
index 3b0292e..8a6579f 100644
--- a/tests.toml
+++ b/tests.toml
@@ -6,4 +6,4 @@ test_format = 1.0
     # Tests to run
     # ------------
 
-    exclude = ["install.root"]
\ No newline at end of file
+    exclude = ["install.root"]