diff --git a/lettre/src/smtp/client/net.rs b/lettre/src/smtp/client/net.rs
index af00c55..773ef78 100644
--- a/lettre/src/smtp/client/net.rs
+++ b/lettre/src/smtp/client/net.rs
@@ -24,8 +24,8 @@ impl ClientTlsParameters {
 }
 
 /// Accepted protocols by default.
-/// This removes TLS 1.0 compared to tls-native defaults.
-pub const DEFAULT_TLS_PROTOCOLS: &[Protocol] = &[Protocol::Tlsv11, Protocol::Tlsv12];
+/// This removes TLS 1.0 and 1.1 compared to tls-native defaults.
+pub const DEFAULT_TLS_PROTOCOLS: &[Protocol] = &[Protocol::Tlsv12];
 
 #[derive(Debug)]
 /// Represents the different types of underlying network streams