diff --git a/scripts/upgrade b/scripts/upgrade
index 1d14eda..e13f286 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -28,7 +28,7 @@ fi
 ynh_script_progression --message="Upgrading source files..."
 
 # Download, check integrity, uncompress and patch the source from app.src
-ynh_setup_source --dest_dir="$install_dir" --full_replace=1 --keep="configuration.php"
+ynh_setup_source --dest_dir="$install_dir" --full_replace=1 --keep="administrator modules components images language plugins templates configuration.php layouts media"
 # Run internal update of joomla fixing missing database tables
 
 pushd "$install_dir"
diff --git a/tests.toml b/tests.toml
index 24d78c1..e033ad5 100644
--- a/tests.toml
+++ b/tests.toml
@@ -5,4 +5,5 @@ test_format = 1.0
     # -------------------------------
     # Commits to test upgrade from
     # -------------------------------
-    test_upgrade_from.08222d1d.name = "Upgrade from 4.2.6"
+    # very old version 
+   # test_upgrade_from.08222d1d.name = "Upgrade from 4.2.6"