diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f2281c..d1cfe41 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+jmap-client 0.3.2
+================================
+- Bump to `rustls` 0.22.
+
 jmap-client 0.3.0
 ================================
 - JMAP for Sieve Scripts DRAFT-14 support.
diff --git a/Cargo.toml b/Cargo.toml
index 7307bea..53ad5fc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "jmap-client"
 description = "JMAP client library for Rust"
-version = "0.3.1"
+version = "0.3.2"
 edition = "2021"
 authors = [ "Stalwart Labs Ltd. <hello@stalw.art>"]
 license = "Apache-2.0 OR MIT"
@@ -18,7 +18,8 @@ tokio-tungstenite = { version = "0.21", features = ["rustls-tls-webpki-roots"],
 tokio = { version = "1.16", default-features = false, features = ["io-util"], optional = true }
 futures-util = { version = "0.3", optional = true}
 async-stream = { version = "0.3", optional = true}
-rustls = { version = "0.21.0", features = ["dangerous_configuration"], optional = true }
+rustls = { version = "0.22", optional = true }
+rustls-pki-types = { version = "1" }
 serde = { version = "1.0", features = ["derive"]}
 serde_json = "1.0"
 chrono = { version = "0.4", features = ["serde"]}
@@ -28,7 +29,7 @@ base64 = "0.13"
 maybe-async = "0.2"
 
 [features]
-default = ["async"]
+default = ["async", "websockets"]
 async = ["futures-util", "async-stream", "reqwest/stream"]
 websockets = ["tokio", "tokio-tungstenite", "rustls"]
 blocking = ["reqwest/blocking", "maybe-async/is_sync"]
diff --git a/src/client_ws.rs b/src/client_ws.rs
index 5c3b8e9..41a403b 100644
--- a/src/client_ws.rs
+++ b/src/client_ws.rs
@@ -14,8 +14,8 @@ use std::{pin::Pin, sync::Arc};
 use ahash::AHashMap;
 use futures_util::{stream::SplitSink, SinkExt, Stream, StreamExt};
 use rustls::{
-    client::{ServerCertVerified, ServerCertVerifier},
-    Certificate, ClientConfig, ServerName,
+    client::danger::{HandshakeSignatureValid, ServerCertVerified, ServerCertVerifier},
+    ClientConfig, SignatureScheme,
 };
 use serde::{Deserialize, Serialize};
 use tokio::net::TcpStream;
@@ -167,20 +167,56 @@ pub struct WsStream {
 }
 
 #[doc(hidden)]
+#[derive(Debug)]
 struct DummyVerifier;
 
 impl ServerCertVerifier for DummyVerifier {
     fn verify_server_cert(
         &self,
-        _e: &Certificate,
-        _i: &[Certificate],
-        _sn: &ServerName,
-        _sc: &mut dyn Iterator<Item = &[u8]>,
-        _o: &[u8],
-        _n: std::time::SystemTime,
+        _end_entity: &rustls_pki_types::CertificateDer<'_>,
+        _intermediates: &[rustls_pki_types::CertificateDer<'_>],
+        _server_name: &rustls_pki_types::ServerName<'_>,
+        _ocsp_response: &[u8],
+        _now: rustls_pki_types::UnixTime,
     ) -> Result<ServerCertVerified, rustls::Error> {
         Ok(ServerCertVerified::assertion())
     }
+
+    fn verify_tls12_signature(
+        &self,
+        _message: &[u8],
+        _cert: &rustls_pki_types::CertificateDer<'_>,
+        _dss: &rustls::DigitallySignedStruct,
+    ) -> Result<HandshakeSignatureValid, rustls::Error> {
+        Ok(HandshakeSignatureValid::assertion())
+    }
+
+    fn verify_tls13_signature(
+        &self,
+        _message: &[u8],
+        _cert: &rustls_pki_types::CertificateDer<'_>,
+        _dss: &rustls::DigitallySignedStruct,
+    ) -> Result<HandshakeSignatureValid, rustls::Error> {
+        Ok(HandshakeSignatureValid::assertion())
+    }
+
+    fn supported_verify_schemes(&self) -> Vec<SignatureScheme> {
+        vec![
+            SignatureScheme::RSA_PKCS1_SHA1,
+            SignatureScheme::ECDSA_SHA1_Legacy,
+            SignatureScheme::RSA_PKCS1_SHA256,
+            SignatureScheme::ECDSA_NISTP256_SHA256,
+            SignatureScheme::RSA_PKCS1_SHA384,
+            SignatureScheme::ECDSA_NISTP384_SHA384,
+            SignatureScheme::RSA_PKCS1_SHA512,
+            SignatureScheme::ECDSA_NISTP521_SHA512,
+            SignatureScheme::RSA_PSS_SHA256,
+            SignatureScheme::RSA_PSS_SHA384,
+            SignatureScheme::RSA_PSS_SHA512,
+            SignatureScheme::ED25519,
+            SignatureScheme::ED448,
+        ]
+    }
 }
 
 impl Client {
@@ -206,7 +242,7 @@ impl Client {
                 false,
                 Connector::Rustls(Arc::new(
                     ClientConfig::builder()
-                        .with_safe_defaults()
+                        .dangerous()
                         .with_custom_certificate_verifier(Arc::new(DummyVerifier {}))
                         .with_no_client_auth(),
                 ))