diff --git a/duplicate_check.py b/duplicate_check.py
index a01cdce..657cea2 100644
--- a/duplicate_check.py
+++ b/duplicate_check.py
@@ -1,4 +1,5 @@
 # Duplicate Check
-# Version: 0.4.0
+# Version: 0.5.0
 
 # Copyright 2025 Jake Winters
+# SPDX-License-Identifier: BSD-3-Clause