diff --git a/scripts/upgrade b/scripts/upgrade
index 5f91923..5cee799 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -29,7 +29,7 @@ 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" --full_replace=1
 
 	pushd $install_dir
 		python3 -m venv venv