diff --git a/Cargo.toml b/Cargo.toml
index b0a4b8f..e6b8266 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cexpr"
-version = "0.3.6"
+version = "0.4.0"
 edition = "2018"
 authors = ["Jethro Beekman <jethro@jbeekman.nl>"]
 license = "Apache-2.0/MIT"