diff --git a/src/flowio/_version.py b/src/flowio/_version.py
index 50d78be..1b30400 100644
--- a/src/flowio/_version.py
+++ b/src/flowio/_version.py
@@ -1,4 +1,4 @@
 """
 FlowIO version
 """
-__version__ = "1.2.2b3"
+__version__ = "1.3.0b0"