diff --git a/scripts/upgrade b/scripts/upgrade
index ccee7bb..1ef8b79 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -43,7 +43,7 @@ fi
 ynh_script_progression --message="Upgrading source files..." --weight=20
 
 # Download, check integrity, uncompress and patch the source from app.src
-ynh_setup_source --dest_dir="$install_dir/source"
+ynh_setup_source --dest_dir="$install_dir/source" --full_replace=1
 
 chmod 750 "$install_dir"
 chmod -R o-rwx "$install_dir"