diff --git a/VERSION b/VERSION
index af19c31..1d0ba9e 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.3.7.dev0
\ No newline at end of file
+0.4.0
diff --git a/docs/changelog.rst b/docs/changelog.rst
index b4085df..61203df 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -2,7 +2,7 @@
 CHANGELOG
 =========
 
-0.4.0 (unreleased)
+0.4.0 (2023-01-29)
 ------------------
 
 **🐛 Corrections**