diff --git a/setup.cfg b/setup.cfg
index 0fb6cc6..7720135 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = star_field
-version = 0.3.0
+version = 0.4.0
 description = star field
 long_description = file: README.md
 long_description_content_type = text/markdown