diff --git a/src/cool_seq_tool/version.py b/src/cool_seq_tool/version.py
index b8b2f532..6ee00823 100644
--- a/src/cool_seq_tool/version.py
+++ b/src/cool_seq_tool/version.py
@@ -1,2 +1,2 @@
 """Define package version."""
-__version__ = "0.4.0-dev3"
+__version__ = "0.4.0-dev2"