diff --git a/Cargo.toml b/Cargo.toml
index 4363a1f..951995b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "pwasm-utils"
 version = "0.18.2"
-edition = "2018"
+edition = "2021"
 authors = ["Nikolay Volf <nikvolf@gmail.com>", "Sergey Pepyakin <s.pepyakin@gmail.com>"]
 license = "MIT/Apache-2.0"
 readme = "README.md"