diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6df7695..8300a07 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,7 @@
-## Next
+## 0.13.0
 
 * Fix RuboCop issues (thanks @utkarsh2102).
-* Add support for Ruby 2.5 and Ruby 2.6 (thanks @utkarsh2102).
+* Change minimum required ruby version to 2.4 (thanks @utkarsh2102).
 
 ## 0.12.3
 
diff --git a/lib/iso8601/version.rb b/lib/iso8601/version.rb
index 8e4a41c..658ff62 100644
--- a/lib/iso8601/version.rb
+++ b/lib/iso8601/version.rb
@@ -3,5 +3,5 @@
 module ISO8601
   ##
   # The gem version
-  VERSION = '0.12.3'
+  VERSION = '0.13.0'
 end