diff --git a/Cargo.toml b/Cargo.toml
index 7cd3f91..7f74f61 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "hyper-rustls"
 version = "0.23.2"
-edition = "2018"
+edition = "2021"
 rust-version = "1.57"
 license = "Apache-2.0/ISC/MIT"
 readme = "README.md"
diff --git a/src/connector.rs b/src/connector.rs
index 59beae2..f10fbd1 100644
--- a/src/connector.rs
+++ b/src/connector.rs
@@ -1,4 +1,3 @@
-use std::convert::TryFrom;
 use std::future::Future;
 use std::pin::Pin;
 use std::sync::Arc;