diff --git a/Cargo.toml b/Cargo.toml
index a6c395f..4c249dc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 name = "dmrconfig"
 version = "0.1.0"
 authors = ["Greg Shuflin <greg.shuflin@protonmail.com>"]
-edition = "2018"
+edition = "2021"
 
 [lib]
 crate-type = ["staticlib"]