diff --git a/mlresearch/_version.py b/mlresearch/_version.py
index 4757ed8..93b9674 100644
--- a/mlresearch/_version.py
+++ b/mlresearch/_version.py
@@ -20,4 +20,4 @@
 # 'X.Y.dev0' is the canonical version of 'X.Y.dev'
 #
 
-__version__ = "0.4a1"
+__version__ = "0.4a2"