diff --git a/python/tskit/_version.py b/python/tskit/_version.py
index 2e6477b903..2d1c089f33 100644
--- a/python/tskit/_version.py
+++ b/python/tskit/_version.py
@@ -1,4 +1,4 @@
 # Definitive location for the version number.
 # During development, should be x.y.z.devN
 # For beta should be x.y.zbN
-tskit_version = "0.3.0.b1"
+tskit_version = "0.3.0b2"