diff --git a/crates/vhost-user-backend/Cargo.toml b/crates/vhost-user-backend/Cargo.toml
index ef2394a..a3d0bbf 100644
--- a/crates/vhost-user-backend/Cargo.toml
+++ b/crates/vhost-user-backend/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["The Cloud Hypervisor Authors"]
 keywords = ["vhost-user", "virtio"]
 description = "A framework to build vhost-user backend service daemon"
 repository = "https://github.com/rust-vmm/vhost"
-edition = "2018"
+edition = "2021"
 license = "Apache-2.0"
 
 [features]
diff --git a/crates/vhost/Cargo.toml b/crates/vhost/Cargo.toml
index 6d5c97f..0fa09ec 100644
--- a/crates/vhost/Cargo.toml
+++ b/crates/vhost/Cargo.toml
@@ -8,7 +8,7 @@ repository = "https://github.com/rust-vmm/vhost"
 documentation = "https://docs.rs/vhost"
 readme = "README.md"
 license = "Apache-2.0 OR BSD-3-Clause"
-edition = "2018"
+edition = "2021"
 
 [package.metadata.docs.rs]
 all-features = true