diff --git a/pyproject.toml b/pyproject.toml
index ecc251c..9a11267 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "arcparse"
-version = "0.5.0"
+version = "0.5.1"
 description = "Declare program arguments declaratively and type-safely"
 license = "MIT"
 authors = ["Jakub Rozek <jakub.rozek314@gmail.com>"]