diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76e8e77..59fb79b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 ## [Unreleased]
 
+## [0.4.0] - 2024-01-21
+
 * Add Categories to API (thanks @lbrito1)
 * Add Category domain model
 * Add stats API and domain model
diff --git a/Gemfile.lock b/Gemfile.lock
index 9f7df56..ac8c79f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    podcast_index (0.3.0)
+    podcast_index (0.4.0)
       activesupport (>= 6.0, < 8)
       addressable (~> 2)
 
diff --git a/lib/podcast_index/version.rb b/lib/podcast_index/version.rb
index e8c5533..9497681 100644
--- a/lib/podcast_index/version.rb
+++ b/lib/podcast_index/version.rb
@@ -1,3 +1,3 @@
 module PodcastIndex
-  VERSION = "0.3.0".freeze
+  VERSION = "0.4.0".freeze
 end