diff --git a/src/cool_seq_tool/version.py b/src/cool_seq_tool/version.py
index 97169a90..7069d0f7 100644
--- a/src/cool_seq_tool/version.py
+++ b/src/cool_seq_tool/version.py
@@ -1,3 +1,3 @@
 """Define package version."""
 
-__version__ = "0.4.0-dev4"
+__version__ = "0.4.1"