diff --git a/impy/__init__.py b/impy/__init__.py
index 4f994ed..0d7742b 100644
--- a/impy/__init__.py
+++ b/impy/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "2.4.2"
+__version__ = "2.4.3"
 __author__ = "Hanjin Liu"
 __email__ = "liuhanjin-sc@g.ecc.u-tokyo.ac.jp"