diff --git a/Cargo.toml b/Cargo.toml
index 1d909bd..52f2662 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -48,7 +48,7 @@ percent-encoding = { version = "2.3", optional = true }
 
 ## tls
 native-tls = { version = "0.2.9", optional = true } # feature
-rustls = { version = "0.23.5", default-features = false, features = ["logging", "std", "tls12"], optional = true }
+rustls = { version = "0.23.18", default-features = false, features = ["logging", "std", "tls12"], optional = true }
 rustls-native-certs = { version = "0.8", optional = true }
 webpki-roots = { version = "0.26", optional = true }
 boring = { version = "4", optional = true }