diff --git a/libmproxy/version.py b/libmproxy/version.py
index 35c6e8de8..6d249a8ec 100644
--- a/libmproxy/version.py
+++ b/libmproxy/version.py
@@ -1,2 +1,2 @@
-IVERSION = (0, 3)
+IVERSION = (0, 4)
 VERSION = ".".join([str(i) for i in IVERSION])