diff --git a/compressor/__init__.py b/compressor/__init__.py
index 6524f6c..fdbc16e 100644
--- a/compressor/__init__.py
+++ b/compressor/__init__.py
@@ -1,2 +1,2 @@
 # following PEP 386
-__version__ = "1.3"
+__version__ = "1.4a1"