diff --git a/Cargo.toml b/Cargo.toml
index 0b30ce9..040b321 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,7 @@ hostname = { version = "0.1.5", optional = true }
 serde = { version = "^1.0", optional = true }
 serde_json = { version = "^1.0", optional = true }
 serde_derive = { version = "^1.0", optional = true }
-fast-socks5 = { version = "0.3.1", optional = true }
+fast-socks5 = { version = "^0.4", optional = true }
 fast_chemail = "^0.9"
 async-native-tls = { version = "0.3.3" }
 async-std = { version = "1.6.0", features = ["unstable"] }
diff --git a/src/smtp/smtp_client.rs b/src/smtp/smtp_client.rs
index c3ded97..0688f31 100644
--- a/src/smtp/smtp_client.rs
+++ b/src/smtp/smtp_client.rs
@@ -389,10 +389,7 @@ impl<'a> SmtpTransport {
     }
 
     async fn try_tls(&mut self) -> Result<(), Error> {
-        let server_info = self
-            .server_info
-            .as_ref()
-            .ok_or_else(|| Error::NoServerInfo)?;
+        let server_info = self.server_info.as_ref().ok_or(Error::NoServerInfo)?;
         match (
             &self.client_info.security,
             server_info.supports_feature(Extension::StartTls),