diff --git a/Cargo.lock b/Cargo.lock
index e5e188a..709404d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1984,7 +1984,7 @@ dependencies = [
 
 [[package]]
 name = "xwt-test-server"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "color-eyre",
  "envfury",
diff --git a/crates/xwt-test-server/Cargo.toml b/crates/xwt-test-server/Cargo.toml
index 47e9813..00c2436 100644
--- a/crates/xwt-test-server/Cargo.toml
+++ b/crates/xwt-test-server/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "xwt-test-server"
-version = "0.4.0"
+version = "0.4.1"
 edition = "2021"
 resolver = "2"
 license = "MIT"
@@ -26,7 +26,7 @@ thiserror = "1"
 tokio = { version = "1", default-features = false, features = ["rt-multi-thread"] }
 tracing = "0.1"
 tracing-subscriber = { version = "0.3", optional = true }
-wtransport = { version = "0.1.12", default-features = false }
+wtransport = { version = "0.1.13", default-features = false, features = ["self-signed"] }
 
 [features]
 bin = ["dep:color-eyre", "dep:envfury", "dep:tracing-subscriber", "tokio/macros"]
diff --git a/crates/xwt-test-server/src/lib.rs b/crates/xwt-test-server/src/lib.rs
index 9556da8..d85e6fb 100644
--- a/crates/xwt-test-server/src/lib.rs
+++ b/crates/xwt-test-server/src/lib.rs
@@ -27,7 +27,7 @@ pub async fn endpoint(
         )
     });
 
-    match identity.certificate_chain().first() {
+    match identity.certificate_chain().as_ref().first() {
         Some(cert) => {
             let sha256_fingerpint = xwt_cert_fingerprint::Sha256::compute_for_der(cert.der());
             tracing::info!(message = "using tls certificate", %sha256_fingerpint);