diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f90b9b1b..b115b5836 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## v0.31.0-dev
+## v0.31.0 (2023-12-11)
 
   * Enhancements
     * Allow searching atoms, module attributes, and words finishing with `?` and `!`
diff --git a/mix.exs b/mix.exs
index 1c60f8c18..0d49e20bd 100644
--- a/mix.exs
+++ b/mix.exs
@@ -2,7 +2,7 @@ defmodule ExDoc.Mixfile do
   use Mix.Project
 
   @source_url "https://github.com/elixir-lang/ex_doc"
-  @version "0.30.9"
+  @version "0.31.0"
 
   def project do
     [