diff --git a/README.md b/README.md
index 41b0f92..8e3f769 100644
--- a/README.md
+++ b/README.md
@@ -152,4 +152,4 @@ Guidelines](CONTRIBUTING.md) for details.
 
 [MIT](LICENSE)
 
-© 2022 Hetty Software
+© 2019–2025 Hetty Software