diff --git a/cylc/rose/__init__.py b/cylc/rose/__init__.py
index 6d92bdc..403d4e2 100644
--- a/cylc/rose/__init__.py
+++ b/cylc/rose/__init__.py
@@ -205,4 +205,4 @@
 
 """
 
-__version__ = '1.3.4'
+__version__ = '1.3.5.dev'