diff --git a/client/Cargo.toml b/client/Cargo.toml
index 52b29a5e..bfe13572 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -34,7 +34,7 @@ futures-util = "0.3.1"
 rustls = { version = "0.21.7", features = ["dangerous_configuration"] }
 webpki = "0.22.0"
 hecs = { workspace = true }
-rcgen = { version = "0.12.1", default-features = false, features = ["ring"] }
+rcgen = { version = "0.13.1", default-features = false, features = ["ring"] }
 memoffset = "0.9"
 gltf = { version = "1.0.0", default-features = false, features = ["utils"] }
 metrics = "0.22.1"
diff --git a/client/src/main.rs b/client/src/main.rs
index 916ece08..34071c3a 100644
--- a/client/src/main.rs
+++ b/client/src/main.rs
@@ -23,9 +23,9 @@ fn main() {
             UdpSocket::bind("[::1]:0".parse::<SocketAddr>().unwrap()).expect("binding socket");
         config.server = Some(socket.local_addr().unwrap());
 
-        let cert = rcgen::generate_simple_self_signed(vec!["localhost".into()]).unwrap();
-        let key = cert.serialize_private_key_der();
-        let cert = cert.serialize_der().unwrap();
+        let certified_key = rcgen::generate_simple_self_signed(vec!["localhost".into()]).unwrap();
+        let key = certified_key.key_pair.serialize_der();
+        let cert = certified_key.cert.der().to_vec();
         let sim_cfg = config.local_simulation.clone();
 
         let save = dirs.data_local_dir().join("default.save");
diff --git a/server/Cargo.toml b/server/Cargo.toml
index 283a2657..28b656d9 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -18,7 +18,7 @@ quinn = { workspace = true }
 serde = { version = "1.0.104", features = ["derive", "rc"] }
 toml = { workspace = true }
 anyhow = "1.0.26"
-rcgen = { version = "0.12.1", default-features = false, features = ["ring"] }
+rcgen = { version = "0.13.1", default-features = false, features = ["ring"] }
 hostname = "0.4.0"
 futures = "0.3.1"
 hecs = { workspace = true }
diff --git a/server/src/main.rs b/server/src/main.rs
index 5a5f71eb..d0d4b3c4 100644
--- a/server/src/main.rs
+++ b/server/src/main.rs
@@ -48,7 +48,7 @@ pub fn run() -> Result<()> {
         _ => {
             // TODO: Cache on disk
             warn!("generating self-signed certificate");
-            let cert = rcgen::generate_simple_self_signed(vec![cfg
+            let certified_key = rcgen::generate_simple_self_signed(vec![cfg
                 .server_name
                 .clone()
                 .map(Ok)
@@ -59,8 +59,8 @@ pub fn run() -> Result<()> {
                     })
                 })?])
             .unwrap();
-            let key = cert.serialize_private_key_der();
-            let cert = cert.serialize_der().unwrap();
+            let key = certified_key.key_pair.serialize_der();
+            let cert = certified_key.cert.der().to_vec();
             (vec![rustls::Certificate(cert)], rustls::PrivateKey(key))
         }
     };