diff --git a/tonic/Cargo.toml b/tonic/Cargo.toml
index 013cc6e72..c14724991 100644
--- a/tonic/Cargo.toml
+++ b/tonic/Cargo.toml
@@ -69,6 +69,7 @@ prost = {version = "0.12", default-features = false, features = ["std"], optiona
 async-trait = {version = "0.1.13", optional = true}
 
 # transport
+async-stream = {version = "0.3", optional = true}
 h2 = {version = "0.3.17", optional = true}
 hyper = {version = "0.14.26", features = ["full"], optional = true}
 hyper-timeout = {version = "0.4", optional = true}
@@ -77,7 +78,6 @@ tower = {version = "0.4.7", default-features = false, features = ["balance", "bu
 axum = {version = "0.6.9", default_features = false, optional = true}
 
 # rustls
-async-stream = { version = "0.3", optional = true }
 rustls-pemfile = { version = "1.0", optional = true }
 rustls-native-certs = { version = "0.6.3", optional = true }
 tokio-rustls = { version = "0.24.1", optional = true }