diff --git a/CHANGELOG.md b/CHANGELOG.md
index 72f4fa9..50a91cd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 0.1.0a18 (2026-01-21)
+
+### Fix
+
+- update tests
+
 ## 0.1.0a17 (2025-12-30)
 
 ### Fix
diff --git a/pyproject.toml b/pyproject.toml
index eea53d7..482a61c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ requires = ["flit_core >=3.8.0,<4"]
 
 [project]
 name = "rougail.user_data_environment"
-version = "0.1.0a17"
+version = "0.1.0a18"
 authors = [{name = "Emmanuel Garette", email = "gnunux@gnunux.info"}]
 readme = "README.md"
 description = "Rougail user_data environment"
diff --git a/src/rougail/user_data_environment/__version__.py b/src/rougail/user_data_environment/__version__.py
index b26e0e6..5c83543 100644
--- a/src/rougail/user_data_environment/__version__.py
+++ b/src/rougail/user_data_environment/__version__.py
@@ -1 +1 @@
-__version__ = "0.1.0a17"
+__version__ = "0.1.0a18"