diff --git a/Cargo.toml b/Cargo.toml
index 1ef0cea..ba18db6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "anthem"
-version = "0.3.0-beta.1"
+version = "0.4.0-beta.1"
 authors = ["Patrick Lühne <patrick@luehne.de>"]
 edition = "2018"