diff --git a/ChangeLog.md b/ChangeLog.md
index 5e07a98..e7b3c2a 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Version 0.5.0
+## Version 0.4.0
 * contributors: @imfx77
 
 ---