diff --git a/Cargo.toml b/Cargo.toml
index 29a090c7..b6a2a2b7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,8 @@ homepage = "https://conduit.rs"
 repository = "https://gitlab.com/famedly/conduit"
 readme = "README.md"
 version = "0.2.0"
-edition = "2018"
+rust-version = "1.56"
+edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html