diff --git a/Cargo.toml b/Cargo.toml
index 7335efa..2234c0d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,6 +33,6 @@ http = "1"
 chrono = "0.4.38"
 env_logger = "0.11.3"
 rustainers = "0.12.0"
-rustls = { version = "0.22.4" }
+rustls = { version = "0.23" }
 tokio = { version = "1.37.0", features = ["rt", "macros"] }
 ureq = "=3.0.0-rc2"
diff --git a/generator/src/main/resources/crust/Cargo.mustache b/generator/src/main/resources/crust/Cargo.mustache
index 1293c82..797ec84 100644
--- a/generator/src/main/resources/crust/Cargo.mustache
+++ b/generator/src/main/resources/crust/Cargo.mustache
@@ -49,6 +49,6 @@ http = "1"
 chrono = "0.4.38"
 env_logger = "0.11.3"
 rustainers = "0.12.0"
-rustls = { version = "0.22.4" }
+rustls = { version = "0.23.4" }
 tokio = { version = "1.37.0", features = ["rt", "macros"] }
 ureq = "=3.0.0-rc2"
diff --git a/tests/utils/mod.rs b/tests/utils/mod.rs
index 2ffeb82..7c64cce 100644
--- a/tests/utils/mod.rs
+++ b/tests/utils/mod.rs
@@ -3,7 +3,11 @@
 //   Author: David Runge <dvzrv@archlinux.org>
 //   License: Apache-2.0 OR MIT
 
-use std::sync::Arc;
+use std::{
+    fmt::Debug,
+    io::{Read, Write},
+    sync::Arc,
+};
 
 use nethsm_sdk_rs::apis::configuration::Configuration;
 use rustainers::{
@@ -12,15 +16,174 @@ use rustainers::{
     WaitStrategy,
 };
 use rustls::{
-    client::{
-        danger::{HandshakeSignatureValid, ServerCertVerified, ServerCertVerifier},
-        ClientConfig,
+    client::danger::{HandshakeSignatureValid, ServerCertVerified, ServerCertVerifier},
+    crypto::{
+        self, verify_tls12_signature, verify_tls13_signature, CryptoProvider,
+        WebPkiSupportedAlgorithms,
     },
-    crypto::{self, WebPkiSupportedAlgorithms},
     pki_types::{CertificateDer, ServerName, UnixTime},
-    DigitallySignedStruct, SignatureScheme,
+    ClientConnection, DigitallySignedStruct, SignatureScheme, StreamOwned,
+};
+use ureq::{
+    resolver::DefaultResolver,
+    transport::{
+        Buffers, ChainedConnector, ConnectionDetails, Connector, LazyBuffers, NextTimeout,
+        TcpConnector, Transport, TransportAdapter,
+    },
 };
 
+#[derive(Debug)]
+struct TlsConnectorAcceptAll;
+
+impl Connector for TlsConnectorAcceptAll {
+    fn connect(
+        &self,
+        details: &ConnectionDetails,
+        chained: Option<Box<dyn Transport>>,
+    ) -> Result<Option<Box<dyn Transport>>, ureq::Error> {
+        let Some(transport) = chained else {
+            panic!("Chained connector is required");
+        };
+
+        if !details.needs_tls() || transport.is_tls() {
+            return Ok(Some(transport));
+        }
+
+        let name_borrowed: ServerName<'_> = details
+            .uri
+            .authority()
+            .expect("uri authority for tls")
+            .host()
+            .try_into()
+            .map_err(|_e| ureq::Error::Tls("Rustls invalid dns name error"))?;
+
+        let name = name_borrowed.to_owned();
+        let config = rustls_accept_all_config();
+        let conn = ClientConnection::new(config, name)?;
+
+        let stream = StreamOwned {
+            conn,
+            sock: TransportAdapter::new(transport),
+        };
+
+        // FIXME: use details.config.(input/output)_buffer_size,
+        let buffers = LazyBuffers::new(512 * 1024, 512 * 1024);
+
+        let transport = Box::new(CertIgnoredTransport { buffers, stream });
+        Ok(Some(transport))
+    }
+}
+
+struct CertIgnoredTransport {
+    stream: StreamOwned<ClientConnection, TransportAdapter>,
+    buffers: LazyBuffers,
+}
+
+impl Debug for CertIgnoredTransport {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.debug_struct("CertIgnoredTransport")
+            .finish_non_exhaustive()
+    }
+}
+
+impl Transport for CertIgnoredTransport {
+    fn buffers(&mut self) -> &mut dyn Buffers {
+        &mut self.buffers
+    }
+
+    fn transmit_output(&mut self, amount: usize, timeout: NextTimeout) -> Result<(), ureq::Error> {
+        self.stream.get_mut().set_timeout(timeout);
+
+        let output = &self.buffers.output()[..amount];
+        self.stream.write_all(output)?;
+
+        Ok(())
+    }
+
+    fn await_input(&mut self, timeout: NextTimeout) -> Result<bool, ureq::Error> {
+        if self.buffers.can_use_input() {
+            return Ok(true);
+        }
+
+        self.stream.get_mut().set_timeout(timeout);
+
+        let input = self.buffers.input_append_buf();
+        let amount = self.stream.read(input)?;
+        self.buffers.input_appended(amount);
+
+        Ok(amount > 0)
+    }
+
+    fn is_open(&mut self) -> bool {
+        self.stream.get_mut().get_mut().is_open()
+    }
+
+    fn is_tls(&self) -> bool {
+        true
+    }
+}
+
+fn rustls_accept_all_config() -> Arc<rustls::ClientConfig> {
+    let provider = Arc::new(rustls::crypto::ring::default_provider());
+
+    let config = rustls::ClientConfig::builder_with_provider(provider.clone())
+        .with_protocol_versions(rustls::ALL_VERSIONS)
+        .unwrap()
+        .dangerous()
+        .with_custom_certificate_verifier(Arc::new(DisabledVerifier(provider.clone())))
+        .with_no_client_auth();
+
+    Arc::new(config)
+}
+
+#[derive(Debug)]
+struct DisabledVerifier(Arc<CryptoProvider>);
+
+impl ServerCertVerifier for DisabledVerifier {
+    fn verify_server_cert(
+        &self,
+        _end_entity: &CertificateDer<'_>,
+        _intermediates: &[CertificateDer<'_>],
+        _server_name: &ServerName<'_>,
+        _ocsp_response: &[u8],
+        _now: UnixTime,
+    ) -> Result<ServerCertVerified, rustls::Error> {
+        Ok(rustls::client::danger::ServerCertVerified::assertion())
+    }
+
+    fn verify_tls12_signature(
+        &self,
+        message: &[u8],
+        cert: &CertificateDer<'_>,
+        dss: &DigitallySignedStruct,
+    ) -> Result<HandshakeSignatureValid, rustls::Error> {
+        verify_tls12_signature(
+            message,
+            cert,
+            dss,
+            &self.0.signature_verification_algorithms,
+        )
+    }
+
+    fn verify_tls13_signature(
+        &self,
+        message: &[u8],
+        cert: &CertificateDer<'_>,
+        dss: &DigitallySignedStruct,
+    ) -> Result<HandshakeSignatureValid, rustls::Error> {
+        verify_tls13_signature(
+            message,
+            cert,
+            dss,
+            &self.0.signature_verification_algorithms,
+        )
+    }
+
+    fn supported_verify_schemes(&self) -> Vec<SignatureScheme> {
+        self.0.signature_verification_algorithms.supported_schemes()
+    }
+}
+
 pub async fn with_container<F: FnOnce(Configuration) -> T, T>(f: F) -> T {
     let _ = env_logger::builder().is_test(true).try_init();
 
@@ -33,14 +196,14 @@ pub async fn with_container<F: FnOnce(Configuration) -> T, T>(f: F) -> T {
 
     let config = Configuration {
         base_path: container.api().await,
-        client: ureq::Agent::config_builder()
-            .tls_config(
-                ureq::tls::TlsConfig::builder()
-                    .disable_verification(true)
-                    .build(),
-            )
-            .build()
-            .new_agent(),
+        client: ureq::Agent::with_parts(
+            ureq::Agent::config_builder().build(),
+            ChainedConnector::new([
+                Box::new(TcpConnector::default()) as Box<dyn Connector>,
+                Box::new(TlsConnectorAcceptAll),
+            ]),
+            DefaultResolver::default(),
+        ),
         ..Default::default()
     };