Bumped version to 4.0-alpha
diff --git a/setup.py b/setup.py
index 3b41d25..a4d1d41 100755
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
 
 if __name__ == '__main__':
     setup(name='rsa',
-          version='3.4',
+          version='4.0-alpha',
           description='Pure-Python RSA implementation',
           author='Sybren A. Stuvel',
           author_email='sybren@stuvel.eu',