diff --git a/VERSION b/VERSION
index 1d0ba9ea..267577d4 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.4.0
+0.4.1
diff --git a/setup.cfg b/setup.cfg
index 15886bcb..d61d391f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.4.0
+current_version = 0.4.1
 commit = True
 tag = True
 
diff --git a/setup.py b/setup.py
index dec1c323..50dd6717 100644
--- a/setup.py
+++ b/setup.py
@@ -50,6 +50,6 @@
     test_suite='tests',
     tests_require=test_requirements,
     url='https://github.com/jeandet/spwc',
-    version='0.4.0',
+    version='0.4.1',
     zip_safe=False,
 )
diff --git a/spwc/__init__.py b/spwc/__init__.py
index 9901668e..6713df87 100644
--- a/spwc/__init__.py
+++ b/spwc/__init__.py
@@ -4,7 +4,7 @@
 
 __author__ = """Alexis Jeandet"""
 __email__ = 'alexis.jeandet@member.fsf.org'
-__version__ = '0.4.0'
+__version__ = '0.4.1'
 from .common.variable import SpwcVariable
 from .amda import AMDA
 from .cdaweb import cdaweb as cd