diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2cc2b08..87448cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # CHANGELOG
 
+## v0.4.0 2024-03-20
+
+### features
+
+- Add base64 util function, support method: `Base64.Encode` and `Base64.Decode`
+
 <!-- markdownlint-disable -->
 ## v0.3.0 2024-0206