diff --git a/Cargo.toml b/Cargo.toml
index ecf2887..4348a1d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ttmp"
-version = "3.0.0"
+version = "4.0.0"
 edition = "2021"
 autoexamples = true