diff --git a/pyproject.toml b/pyproject.toml
index 95eeae8..f8175fa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "checkedid"
-version = "0.3.0"
+version = "0.4.0"
 description = "CheckedID Python API client"
 authors = ["Jelmer Draaijer <jelmer.draaijer@dok.works.nl>"]
 license = "MIT"