diff --git a/docs/HISTORY.txt b/docs/HISTORY.txt
index ffb90da..7d15224 100644
--- a/docs/HISTORY.txt
+++ b/docs/HISTORY.txt
@@ -2,8 +2,8 @@ Changelog
 =========
 
 
-4.0.0 (unreleased)
---------------------
+4.0.0 (2023-05-30)
+------------------
 
 - No longer add * to search term. [mathias.leimgruber]
 
diff --git a/setup.py b/setup.py
index c278b47..7193a31 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 from setuptools import setup, find_packages
 import os
 
-version = '4.0.0b3.dev0'
+version = '4.0.0'
 maintainer = 'Mathias Leimgruber'
 
 tests_require = [