diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0654734..439ba4e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+# 0.4.0 (19.04.2024)
+- [[BAS] Add process for OpenAI](https://github.com/kommitters/bas/issues/25)
+
 ## 0.3.1 (16.04.2024)
 - [Use case format error](https://github.com/kommitters/bas/issues/22)
 
diff --git a/lib/bas/version.rb b/lib/bas/version.rb
index 32850ba..5b993f9 100644
--- a/lib/bas/version.rb
+++ b/lib/bas/version.rb
@@ -2,5 +2,5 @@
 
 module Bas
   # Gem version
-  VERSION = "0.3.1"
+  VERSION = "0.4.0"
 end