diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd7599f..843b371 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog for aiodogstatsd
 
-## 0.4.0 (2019-XX-XX)
+## 0.4.0 (2019-04-29)
 
 - Added Python 3.6.* support.
 
diff --git a/pyproject.toml b/pyproject.toml
index 5282cbc..00487cf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ skip = ".eggs,.venv,venv"
 
 [tool.poetry]
 name = "aiodogstatsd"
-version = "0.4.0-alpha.0"
+version = "0.4.0"
 description = "An asyncio-based client for sending metrics to StatsD with support of DogStatsD extension"
 authors = [
     "Nikita Grishko <gr1n@protonmail.com>"