diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3a0d059..2c656f3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 0.1.0a1 (2024-11-27)
+
+### Fix
+
+- NAMESPACE. instead of NAMESPACE_
+
 ## 0.1.0a0 (2024-11-25)
 
 ### Feat
diff --git a/pyproject.toml b/pyproject.toml
index 6e65d23..85e025d 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 = "0.1.0a0"
+version = "0.1.0a1"
 authors = [{name = "Emmanuel Garette", email = "gnunux@gnunux.info"}]
 readme = "README.md"
 description = "Rougail user_data environment"