diff --git a/CHANGELOG.md b/CHANGELOG.md
index 162caa1..2f47463 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,11 +4,16 @@ A concise overview of the public-facing changes to the gem from version to versi
 
 ## Unreleased
 
-The follow changes will be coming in the upcoming v4.0.0 release.
+## v4.0.0 - 2023-01-26
 
 - **Breaking change**: drop support for Ruby 2.5 and earlier
-- Fixes
+- CLI with limited options, e.g. `graphql-docs schema.graphql`
+- Dart Sass replaces Ruby Sass because Ruby Sass is deprecated
+- Fixes:
   - Upgrade commonmarker to latest ver to address security vulnerabilities
+  - commonmarker pinned to version without security vulnerability
+- Chores
+  - Dev env refresh
 
 ## v3.0.1 - 2022-10-14
 
diff --git a/lib/graphql-docs/version.rb b/lib/graphql-docs/version.rb
index 7b87dbb..37037a4 100644
--- a/lib/graphql-docs/version.rb
+++ b/lib/graphql-docs/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module GraphQLDocs
-  VERSION = '3.0.1'
+  VERSION = '4.0.0'
 end