diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9cc6013..4443521 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+## [1.8.0] - 2024-01-07
+
 ### Added
 
 - support for `#<=>` and `#join`, which were added to `set` in the meantime
diff --git a/lib/character_set/version.rb b/lib/character_set/version.rb
index 22bab6a..00d36b4 100644
--- a/lib/character_set/version.rb
+++ b/lib/character_set/version.rb
@@ -1,3 +1,3 @@
 class CharacterSet
-  VERSION = '1.7.0'
+  VERSION = '1.8.0'
 end