diff --git a/setup.py b/setup.py
index 7b2d53d..29dfb1d 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name="KorAPClient",
-    version="0.3.1",
+    version="0.5.9.9000",
     author="Marc Kupietz",
     author_email="kupietz@ids-mannheim.de",
     description="Client package to access KorAP's web service API",