diff --git a/version.py b/version.py
index c1aacb39..e1132bc2 100644
--- a/version.py
+++ b/version.py
@@ -27,4 +27,4 @@
 # SOFTWARE,  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
-__version__ = "0.4.7a3"
+__version__ = "0.4.7a4"