diff --git a/Cargo.toml b/Cargo.toml
index a3af21e1..3a331341 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -40,7 +40,7 @@ cookie_store = { version = "0.20", optional = true, default-features = false, fe
 log = "0.4"
 webpki = { package = "rustls-webpki", version = "0.101", optional = true }
 webpki-roots = { version = "0.25", optional = true }
-rustls = { version = ">=0.21.6, <0.22", optional = true }
+rustls = { version = "0.21.6", optional = true }
 rustls-native-certs = { version = "0.6", optional = true }
 native-tls = { version = "0.2", optional = true }
 flate2 = { version = "1.0.22", optional = true }