diff --git a/Cargo.toml b/Cargo.toml
index 20b810e..b4b2e9e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ name = "little-loadshedder"
 description = "Latency-based load-shedding hyper/tower middleware"
 version = "0.1.0"
 license = "MIT OR Apache-2.0"
-edition = "2018"
+edition = "2021"
 repository = "https://github.com/Skepfyr/little-loadshedder"
 keywords = ["hyper", "middleware", "load"]
 categories = ["network-programming"]