diff --git a/pyproject.toml b/pyproject.toml
index 19b7aa5..f150942 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "python-ace"
-version = "0.4.0rc1"
+version = "0.4.0"
 authors = [
     { name = "Yury Lysogorskiy", email = "yury.lysogorskiy@rub.de" },
     { name = "Anton Bochkarev" },