diff --git a/scripts/upgrade b/scripts/upgrade
index 10a4a9f..daf71a6 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -24,7 +24,7 @@ then
 	ynh_script_progression --message="Upgrading source files..." --weight=24
 
 	# 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" --full_replace=1
 
 	# Add "offline" parameter in index.html
 	# See https://desk.draw.io/support/solutions/articles/16000042546-what-url-parameters-are-supported-