diff --git a/sumpy/version.py b/sumpy/version.py
index 04406292abfa5ab2d452b6c6e0a7ae210f166a26..fe973f08885d12c2a8e871755706eb60368fbd28 100644
--- a/sumpy/version.py
+++ b/sumpy/version.py
@@ -25,4 +25,4 @@ VERSION = (2016, 1)
 VERSION_STATUS = "beta1"
 VERSION_TEXT = ".".join(str(x) for x in VERSION) + VERSION_STATUS
 
-KERNEL_VERSION = 3
+KERNEL_VERSION = 4