diff --git a/CHANGELOG.md b/CHANGELOG.md
index a0c3b6da4..f7f6a18fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 1.2.0a68 (2026-03-09)
+
+### Fix
+
+- copy object before modify namespace
+
 ## 1.2.0a67 (2026-03-06)
 
 ### Fix
diff --git a/pyproject.toml b/pyproject.toml
index feb2f4d7d..8a5369fd9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "rougail"
-version = "1.2.0a67"
+version = "1.2.0a68"
 
 [tool.commitizen]
 name = "cz_conventional_commits"
diff --git a/rougail-base-pyproject.toml b/rougail-base-pyproject.toml
index ba4532dbe..d635575e8 100644
--- a/rougail-base-pyproject.toml
+++ b/rougail-base-pyproject.toml
@@ -4,7 +4,7 @@ requires = ["flit_core >=3.8.0,<4"]
 
 [project]
 name = "rougail-base"
-version = "1.2.0a67"
+version = "1.2.0a68"
 authors = [{name = "Emmanuel Garette", email = "gnunux@gnunux.info"}]
 readme = "README.md"
 description = "A consistency handling system that was initially designed in the configuration management"
diff --git a/rougail-pyproject.toml b/rougail-pyproject.toml
index 6a9a4a51f..04d924976 100644
--- a/rougail-pyproject.toml
+++ b/rougail-pyproject.toml
@@ -4,7 +4,7 @@ requires = ["flit_core >=3.8.0,<4"]
 
 [project]
 name = "rougail"
-version = "1.2.0a67"
+version = "1.2.0a68"
 authors = [{name = "Emmanuel Garette", email = "gnunux@gnunux.info"}]
 readme = "README.md"
 description = "A consistency handling system that was initially designed in the configuration management"
@@ -27,7 +27,7 @@ classifiers = [
 dependencies = [
     "ruamel.yaml ~= 0.18.6",
     "pydantic ~= 2.9.2",
-    "rougail-base == 1.2.0a67",
+    "rougail-base == 1.2.0a68",
 ]
 
 [tool.flit.sdist]
diff --git a/src/rougail/__version__.py b/src/rougail/__version__.py
index 5e8fcd713..9fa5db4de 100644
--- a/src/rougail/__version__.py
+++ b/src/rougail/__version__.py
@@ -1 +1 @@
-__version__ = "1.2.0a67"
+__version__ = "1.2.0a68"