diff --git a/CHANGELOG.md b/CHANGELOG.md
index 40e4431..2315532 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+### 0.5.0 / 2026-03-11
+* Validate parameter names
+* Fix command-line argument processing
+
 ### 0.4.1 / 2026-01-26
 * Support compliance_engine 0.2.x
 * Test with Ruby 4.0
diff --git a/lib/scelint/version.rb b/lib/scelint/version.rb
index 91b829d..62f0901 100644
--- a/lib/scelint/version.rb
+++ b/lib/scelint/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Scelint
-  VERSION = '0.4.1'
+  VERSION = '0.5.0'
 end