diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5bcd9ddb1481da6f5b4b8f38db60eed55244aa1..ddb908ae3db2986b34b23f52e13ac06ac9313e99 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,11 @@
 # Changelog
+
 All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [1.0.0] - 2022-12-22
 
 ### Changed
 
diff --git a/pyproject.toml b/pyproject.toml
index 8bc230b3f5dfa015917509b68a5a991297dada49..b014d2e2c14b66de3de6b70e9725f41dafb76134 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "zabbix_sender"
-version = "0.1.0"
+version = "1.0.0"
 description = "Python Zabbix sender implementation"
 authors = ["Turris Software <software@turris.cz>"]
 license = "GPL-3.0-or-later"