diff --git a/changelog.md b/changelog.md
index c6822fd8..b5e6e5f4 100644
--- a/changelog.md
+++ b/changelog.md
@@ -10,12 +10,17 @@ Updated features:
 Removed features:
 
 Internal improvements:
-* Raise ClientError instead of NoMethodError when body is 'null' ([#673](https://github.com/arsduo/koala/issues/673))
 
 Testing improvements:
 
 Others:
 
+v3.5.0 (2023-08-23)
+======
+
+Internal improvements:
+* Raise ClientError instead of NoMethodError when body is 'null' ([#673](https://github.com/arsduo/koala/issues/673))
+
 v3.4.0 (2023-01-05)
 ======
 
diff --git a/lib/koala/version.rb b/lib/koala/version.rb
index d98f4176..3f56d278 100644
--- a/lib/koala/version.rb
+++ b/lib/koala/version.rb
@@ -1,3 +1,3 @@
 module Koala
-  VERSION = "3.4.0"
+  VERSION = "3.5.0"
 end