update list of files included for "setup.py sdist"
diff --git a/serial/__init__.py b/serial/__init__.py
index 1e1172f..552700b 100644
--- a/serial/__init__.py
+++ b/serial/__init__.py
@@ -13,7 +13,7 @@
 from serial.serialutil import *
 #~ SerialBase, SerialException, to_bytes, iterbytes
 
-VERSION = '3.0a0'
+VERSION = '3.0a1'
 
 if sys.platform == 'cli':
     from serial.serialcli import Serial