diff --git a/scripts/upgrade b/scripts/upgrade
index 190e6a5..bf09434 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -43,8 +43,8 @@ if [ "$upgrade_type" == "UPGRADE_APP" ]; 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/nim-installation" --source_id="nim" --keep="nitter.conf"
+	ynh_setup_source --dest_dir="$install_dir" --full_replace=1
+	ynh_setup_source --dest_dir="$install_dir/nim-installation" --source_id="nim" --full_replace=1 --keep="nitter.conf"
 fi
 
 chmod -R o-rwx "$install_dir"