diff --git a/msgcheck/msgcheck.py b/msgcheck/msgcheck.py
index 1adfd6d..04888c6 100644
--- a/msgcheck/msgcheck.py
+++ b/msgcheck/msgcheck.py
@@ -39,7 +39,7 @@
 from .po import PoCheck
 
 
-__version__ = "4.1.0"
+__version__ = "4.2.0-dev"
 
 
 def msgcheck_version():