diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 7d282956..8d9392c4 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -134,6 +134,7 @@ jobs:
     env:
       trget: x86_64-pc-windows-msvc
     steps:
+      - uses: ilammy/setup-nasm@v1
       - name: Checkout code
         uses: actions/checkout@v3
         with:
diff --git a/Cargo.toml b/Cargo.toml
index 1b4d86d8..e54f2b22 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -46,17 +46,17 @@ futures-util = { version = "0.3.30", default-features = false, features = ["allo
 getrandom = "0.2.15"
 lazy_static = "1.4.0"
 md-5 = "0.10.6"
-moka = { version = "0.11.3", default-features = false, features = ["sync"] }
-nix = { version = "0.28.0", default-features = false, features = ["fs"] }
+moka = { version = "0.12.7", default-features = false, features = ["sync"] }
+nix = { version = "0.29.0", default-features = false, features = ["fs"] }
 prometheus = { version = "0.13.4", default-features = false }
 proxy-protocol = "0.5.0"
-rustls = "0.21.12"
-rustls-pemfile = "1.0.4"
+rustls = "0.23.8"
+rustls-pemfile = "2.1.2"
 slog = { version = "2.7.0", features = ["max_level_trace", "release_max_level_info"] }
 slog-stdlog = "4.1.1"
-thiserror = "1.0.60"
-tokio = { version = "1.37.0", features = ["macros", "rt", "net", "process", "sync", "io-util", "time"] }
-tokio-rustls = "0.24.1"
+thiserror = "1.0.61"
+tokio = { version = "1.38.0", features = ["macros", "rt", "net", "process", "sync", "io-util", "time"] }
+tokio-rustls = "0.26.0"
 tokio-util = { version = "0.7.11", features = ["codec"] }
 tracing = { version = "0.1.40", default-features = false }
 tracing-attributes = "0.1.27"
@@ -67,7 +67,7 @@ libc = "0.2"
 
 [dev-dependencies]
 pretty_assertions = "1.4.0"
-tokio = { version = "1.37.0", features = ["macros", "rt-multi-thread"] }
+tokio = { version = "1.38.0", features = ["macros", "rt-multi-thread"] }
 unftp-sbe-fs = { path = "../libunftp/crates/unftp-sbe-fs" }
 
 [patch.crates-io]
diff --git a/crates/unftp-auth-jsonfile/Cargo.toml b/crates/unftp-auth-jsonfile/Cargo.toml
index 986725d8..8cba3976 100644
--- a/crates/unftp-auth-jsonfile/Cargo.toml
+++ b/crates/unftp-auth-jsonfile/Cargo.toml
@@ -25,9 +25,9 @@ ipnet = "2.9.0"
 iprange = "0.6.7"
 libunftp = { version = "0.20.0", path = "../../" }
 ring = "0.16.20"
-serde = { version = "1.0.202", features = ["derive"] }
+serde = { version = "1.0.203", features = ["derive"] }
 serde_json = "1.0.117"
-tokio = { version = "1.37.0", features = ["rt", "time"] }
+tokio = { version = "1.38.0", features = ["rt", "time"] }
 tracing = { version = "0.1.40", default-features = false }
 tracing-attributes = "0.1.27"
 valid = "0.3.1"
@@ -35,7 +35,7 @@ flate2 = "1.0.30"
 
 [dev-dependencies]
 pretty_env_logger = "0.5.0"
-tokio = { version = "1.37.0", features = ["macros"] }
+tokio = { version = "1.38.0", features = ["macros"] }
 unftp-sbe-fs = { version = "0.2.2", path = "../unftp-sbe-fs" }
 
 [lints]
diff --git a/crates/unftp-auth-pam/Cargo.toml b/crates/unftp-auth-pam/Cargo.toml
index 441e7675..03ef3fea 100644
--- a/crates/unftp-auth-pam/Cargo.toml
+++ b/crates/unftp-auth-pam/Cargo.toml
@@ -28,7 +28,7 @@ tracing-attributes = "0.1.27"
 pam-auth = { package = "pam", version = "0.7.0" }
 
 [dev-dependencies]
-tokio = { version = "1.37.0", features = ["macros"] }
+tokio = { version = "1.38.0", features = ["macros"] }
 
 [lints]
 workspace = true
diff --git a/crates/unftp-auth-rest/Cargo.toml b/crates/unftp-auth-rest/Cargo.toml
index 19d6334c..0bacdd0d 100644
--- a/crates/unftp-auth-rest/Cargo.toml
+++ b/crates/unftp-auth-rest/Cargo.toml
@@ -24,16 +24,16 @@ hyper-rustls = "0.24.2"
 libunftp = { version = "0.20.0", path = "../../" }
 percent-encoding = "2.3.1"
 regex = "1.10.4"
-serde = { version = "1.0.202", features = ["derive"] }
+serde = { version = "1.0.203", features = ["derive"] }
 serde_json = "1.0.117"
-tokio = { version = "1.37.0", features = ["rt", "net", "sync", "io-util", "time"] }
+tokio = { version = "1.38.0", features = ["rt", "net", "sync", "io-util", "time"] }
 tracing = { version = "0.1.40", default-features = false }
 tracing-attributes = "0.1.27"
 
 
 [dev-dependencies]
 pretty_env_logger = "0.5.0"
-tokio = { version = "1.37.0", features = ["macros"] }
+tokio = { version = "1.38.0", features = ["macros"] }
 unftp-sbe-fs = { version = "0.2.2", path = "../unftp-sbe-fs" }
 
 [lints]
diff --git a/crates/unftp-sbe-fs/Cargo.toml b/crates/unftp-sbe-fs/Cargo.toml
index 848ad96b..0c3399c7 100644
--- a/crates/unftp-sbe-fs/Cargo.toml
+++ b/crates/unftp-sbe-fs/Cargo.toml
@@ -26,7 +26,7 @@ futures = { version = "0.3.30", default-features = false, features = ["std"] }
 lazy_static = "1.4.0"
 libunftp = { version = "0.20.0", path = "../../" }
 path_abs = "0.5.1"
-tokio = { version = "1.37.0", features = ["rt", "net", "sync", "io-util", "time", "fs"] }
+tokio = { version = "1.38.0", features = ["rt", "net", "sync", "io-util", "time", "fs"] }
 tokio-stream = "0.1.15"
 tracing = { version = "0.1.40", default-features = false }
 tracing-attributes = "0.1.27"
@@ -35,17 +35,17 @@ tracing-attributes = "0.1.27"
 async_ftp = "6.0.0"
 async-trait = "0.1.80"
 more-asserts = "0.3.1"
-nix = { version = "0.26.4", default-features = false, features = ["user"] }
+nix = { version = "0.29.0", default-features = false, features = ["user"] }
 pretty_assertions = "1.4.0"
 pretty_env_logger = "0.5.0"
 regex = "1.10.4"
 rstest = "0.18.2"
-serde = { version = "1.0.202", features = ["derive"] }
+serde = { version = "1.0.203", features = ["derive"] }
 serde_json = "1.0.117"
 slog-async = "2.8.0"
 slog-term = "2.9.1"
 tempfile = "3.10.1"
-tokio = { version = "1.37.0", features = ["macros", "rt-multi-thread"] }
+tokio = { version = "1.38.0", features = ["macros", "rt-multi-thread"] }
 tracing-subscriber = "0.3.18"
 getrandom = "0.2.15"
 
diff --git a/crates/unftp-sbe-gcs/Cargo.toml b/crates/unftp-sbe-gcs/Cargo.toml
index 10098252..e8917754 100644
--- a/crates/unftp-sbe-gcs/Cargo.toml
+++ b/crates/unftp-sbe-gcs/Cargo.toml
@@ -28,10 +28,10 @@ hyper-rustls = "0.24.2"
 libunftp = { version = "0.20.0", path = "../../" }
 mime = "0.3.17"
 percent-encoding = "2.3.1"
-serde = { version = "1.0.202", features = ["derive"] }
+serde = { version = "1.0.203", features = ["derive"] }
 serde_json = "1.0.117"
 time = "0.3.36"
-tokio = { version = "1.37.0", features = ["rt", "net", "sync", "io-util", "time", "fs"] }
+tokio = { version = "1.38.0", features = ["rt", "net", "sync", "io-util", "time", "fs"] }
 tokio-stream = "0.1.15"
 tokio-util = { version = "0.7.11", features = ["codec", "compat"] }
 tracing = { version = "0.1.40", default-features = false }
@@ -51,5 +51,5 @@ slog-async = "2.8.0"
 slog-stdlog = "4.1.1"
 slog-term = "2.9.1"
 tempfile = "3.10.1"
-tokio = { version = "1.37.0", features = ["macros", "rt-multi-thread"] }
+tokio = { version = "1.38.0", features = ["macros", "rt-multi-thread"] }
 tracing-subscriber = "0.3.18"
diff --git a/src/server/controlchan/control_loop.rs b/src/server/controlchan/control_loop.rs
index 57b7734a..d2387d22 100644
--- a/src/server/controlchan/control_loop.rs
+++ b/src/server/controlchan/control_loop.rs
@@ -251,7 +251,7 @@ where
                                 let s: &ServerConnection = stream.get_ref().1;
                                 if let Some(certs) = s.peer_certificates() {
                                     let mut session = shared_session.lock().await;
-                                    session.cert_chain = Some(certs.iter().map(|c| crate::auth::ClientCert(c.0.clone())).collect());
+                                    session.cert_chain = Some(certs.iter().map(|c| crate::auth::ClientCert(c.as_ref().to_vec())).collect());
                                 }
                                 Box::new(stream)
                             }
diff --git a/src/server/tls.rs b/src/server/tls.rs
index eeabc9c2..4c61d8c7 100644
--- a/src/server/tls.rs
+++ b/src/server/tls.rs
@@ -1,8 +1,10 @@
 use crate::options::{FtpsClientAuth, TlsFlags};
 use rustls::{
-    server::{AllowAnyAnonymousOrAuthenticatedClient, AllowAnyAuthenticatedClient, NoClientAuth, NoServerSessionStorage, StoresServerSessions},
+    crypto::{aws_lc_rs, aws_lc_rs::Ticketer},
+    pki_types::{CertificateDer, PrivateKeyDer},
+    server::{ClientCertVerifierBuilder, NoServerSessionStorage, StoresServerSessions, WebPkiClientVerifier},
     version::{TLS12, TLS13},
-    Certificate, NoKeyLog, PrivateKey, RootCertStore, ServerConfig, SupportedProtocolVersion, Ticketer,
+    NoKeyLog, RootCertStore, ServerConfig, SupportedProtocolVersion,
 };
 use std::{
     fmt::{self, Display, Formatter},
@@ -58,6 +60,9 @@ pub enum ConfigError {
 
     #[error("error initialising Rustls")]
     RustlsInit(#[from] rustls::Error),
+
+    #[error("error initialising the client cert verifier")]
+    ClientVerifier(#[from] rustls::server::VerifierBuilderError),
 }
 
 pub fn new_config<P: AsRef<Path>>(
@@ -67,20 +72,17 @@ pub fn new_config<P: AsRef<Path>>(
     client_auth: FtpsClientAuth,
     trust_store: P,
 ) -> Result<Arc<ServerConfig>, ConfigError> {
-    let certs: Vec<Certificate> = load_certs(certs_file)?;
-    let privkey: PrivateKey = load_private_key(key_file)?;
+    let certs: Vec<CertificateDer> = load_certs(certs_file)?;
+    let privkey: PrivateKeyDer = load_private_key(key_file)?;
+
+    let builder: ClientCertVerifierBuilder = WebPkiClientVerifier::builder(Arc::new(root_cert_store(trust_store)?));
 
     let client_auther = match client_auth {
-        FtpsClientAuth::Off => NoClientAuth::boxed(),
-        FtpsClientAuth::Request => {
-            let store: RootCertStore = root_cert_store(trust_store)?;
-            AllowAnyAnonymousOrAuthenticatedClient::new(store).boxed()
-        }
-        FtpsClientAuth::Require => {
-            let store: RootCertStore = root_cert_store(trust_store)?;
-            AllowAnyAuthenticatedClient::new(store).boxed()
-        }
-    };
+        FtpsClientAuth::Off => Ok(WebPkiClientVerifier::no_client_auth()),
+        FtpsClientAuth::Request => builder.allow_unauthenticated().build(),
+        FtpsClientAuth::Require => builder.build(),
+    }
+    .map_err(ConfigError::ClientVerifier)?;
 
     let mut versions: Vec<&SupportedProtocolVersion> = vec![];
     if flags.contains(TlsFlags::V1_2) {
@@ -90,13 +92,13 @@ pub fn new_config<P: AsRef<Path>>(
         versions.push(&TLS13)
     }
 
-    let mut config = ServerConfig::builder()
-        .with_safe_default_cipher_suites()
-        .with_safe_default_kx_groups()
-        .with_protocol_versions(&versions).map_err(ConfigError::RustlsInit)?
+    let provider = Arc::new(aws_lc_rs::default_provider());
+    let mut config = ServerConfig::builder_with_provider(provider)
+        .with_protocol_versions(&versions)
+        .map_err(ConfigError::RustlsInit)?
         .with_client_cert_verifier(client_auther)
-        // No SNI, single certificate 
-        .with_single_cert(certs, privkey).map_err(ConfigError::RustlsInit)?;
+        .with_single_cert(certs, privkey)
+        .map_err(ConfigError::RustlsInit)?; // No SNI, single certificate
 
     // Support session resumption with server side state (Session IDs)
     config.session_storage = if flags.contains(TlsFlags::RESUMPTION_SESS_ID) {
@@ -118,24 +120,25 @@ fn root_cert_store<P: AsRef<Path>>(trust_pem: P) -> Result<RootCertStore, Config
     let mut store = RootCertStore::empty();
     let certs = load_certs(trust_pem)?;
     for cert in certs.iter() {
-        store.add(cert).map_err(ConfigError::RootCerts)?
+        store.add(cert.clone()).map_err(ConfigError::RootCerts)?
     }
     Ok(store)
 }
 
-fn load_certs<P: AsRef<Path>>(filename: P) -> Result<Vec<Certificate>, ConfigError> {
+fn load_certs<P: AsRef<Path>>(filename: P) -> Result<Vec<CertificateDer<'static>>, ConfigError> {
     let certfile: File = File::open(filename)?;
     let mut reader: BufReader<File> = BufReader::new(certfile);
-    rustls_pemfile::certs(&mut reader).map_err(ConfigError::Load).map(|v| {
-        let mut res = Vec::with_capacity(v.len());
-        for e in v {
-            res.push(Certificate(e));
-        }
-        res
-    })
+    let certs = rustls_pemfile::certs(&mut reader);
+    let mut res = Vec::new();
+    for cert in certs {
+        let cert = cert.map_err(ConfigError::Load)?;
+        res.push(cert);
+    }
+    Ok(res)
 }
 
-fn load_private_key<P: AsRef<Path>>(filename: P) -> Result<PrivateKey, ConfigError> {
+fn load_private_key<P: AsRef<Path>>(filename: P) -> Result<PrivateKeyDer<'static>, ConfigError> {
+    use rustls::pki_types::PrivateKeyDer;
     use rustls_pemfile::{read_one, Item};
     use std::iter;
 
@@ -144,9 +147,9 @@ fn load_private_key<P: AsRef<Path>>(filename: P) -> Result<PrivateKey, ConfigErr
 
     for item in iter::from_fn(|| read_one(&mut reader).transpose()) {
         match item {
-            Ok(Item::RSAKey(key)) => return Ok(PrivateKey(key)),
-            Ok(Item::PKCS8Key(key)) => return Ok(PrivateKey(key)),
-            Ok(Item::ECKey(key)) => return Ok(PrivateKey(key)),
+            Ok(Item::Pkcs1Key(key)) => return Ok(PrivateKeyDer::Pkcs1(key)),
+            Ok(Item::Pkcs8Key(key)) => return Ok(PrivateKeyDer::Pkcs8(key)),
+            Ok(Item::Sec1Key(key)) => return Ok(PrivateKeyDer::Sec1(key)),
             Err(e) => return Err(ConfigError::Load(e)),
             _ => {}
         }
@@ -156,6 +159,7 @@ fn load_private_key<P: AsRef<Path>>(filename: P) -> Result<PrivateKey, ConfigErr
 }
 
 /// Stores the session IDs server side.
+#[derive(Debug)]
 struct TlsSessionCache {
     cache: moka::sync::Cache<Vec<u8>, Vec<u8>>,
 }