diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index f6957eee..4b7e063a 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -4,7 +4,7 @@ Toolium Changelog
 v3.1.1
 ------
 
-*Release date: In development*
+*Release date: 2024-02-02*
 
 - Add support for Python 3.12
 - Upgrade Sphinx version from 4.* to 7.* to fix readthedocs theme format
diff --git a/VERSION b/VERSION
index 701ebec1..94ff29cc 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-3.1.1.dev0
+3.1.1