diff --git a/cylc/rose/__init__.py b/cylc/rose/__init__.py
index 319e12e..9a4f8dd 100644
--- a/cylc/rose/__init__.py
+++ b/cylc/rose/__init__.py
@@ -232,4 +232,4 @@
 
 """
 
-__version__ = '1.4.2'
+__version__ = '1.4.3.dev'