diff --git a/MDRefine/_version.py b/MDRefine/_version.py
index ba82419..cae7e63 100644
--- a/MDRefine/_version.py
+++ b/MDRefine/_version.py
@@ -1,3 +1,3 @@
 # version number
-__version__ = "0.0.3"
+__version__ = "0.0.4"