diff --git a/CHANGELOG.md b/CHANGELOG.md
index 91dca05c..33caef01 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,9 @@ Changes and additions to the library will be listed here.
 
 ## Unreleased
 
+## 1.5.0
 - Add support for AWS IAM Authentication to an MSK cluster (#907).
+- Added session token to the IAM mechanism; necessary for auth via temporary credentials (#937)
 
 ## 1.4.0
 
diff --git a/lib/kafka/version.rb b/lib/kafka/version.rb
index 166bf556..715f2441 100644
--- a/lib/kafka/version.rb
+++ b/lib/kafka/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Kafka
-  VERSION = "1.4.0"
+  VERSION = "1.5.0"
 end