diff --git a/pyproject.toml b/pyproject.toml
index 8e1120c..232abd1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "certbot-onion"
-version = "0.1.6"
+version = "0.1.7"
 description = "Certbot authenticator plugin for the onion-csr-01 challenge"
 authors = [
     {name = "Q Misell", email = "q@as207960.net"}
@@ -13,7 +13,7 @@ readme = "README.md"
 
 [project.urls]
 "Homepage" = "https://acmeforonions.org"
-"Bug Tracker" = "https://github.com/AS207960/certbot-onion"
+"Repository" = "https://github.com/AS207960/certbot-onion"
 
 [build-system]
 requires = ["setuptools", "wheel", "setuptools-rust"]
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index 3bba640..55d799b 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -5,16 +5,17 @@ authors = ["Q Misell <q@as207960.net>"]
 edition = "2021"
 
 [dependencies]
-pyo3 = { version = "0.18", features = ["extension-module"] }
-ed25519-dalek = "1"
+pyo3 = { version = "0.20", features = ["extension-module"] }
+ed25519-dalek = { version = "2", features = ["hazmat"] }
 hex =  "0.4"
 openssl = { version = ">=0.10.25", features = ["vendored", "v111"] }
 openssl-sys = "0.9"
 rand = "0.8"
 libc = "0.2"
 foreign-types-shared = "0.1"
-asn1 = "0.14"
+asn1 = "0.15"
+sha2 = "0.10.8"
 
 [lib]
 name = "certbot_onion_rust"
-crate-type = ["cdylib"]
\ No newline at end of file
+crate-type = ["cdylib"]
diff --git a/rust/src/lib.rs b/rust/src/lib.rs
index 545996c..d3c33f7 100644
--- a/rust/src/lib.rs
+++ b/rust/src/lib.rs
@@ -13,9 +13,9 @@ fn _rust(_py: Python<'_>, m: &PyModule) -> PyResult<()> {
 fn make_csr(priv_key: &[u8], ca_nonce: &[u8]) -> PyResult<Vec<u8>> {
     let mut rng = rand::thread_rng();
 
-    let sk = ed25519_dalek::ExpandedSecretKey::from_bytes(priv_key)
+    let sk = ed25519_dalek::hazmat::ExpandedSecretKey::from_slice(priv_key)
         .map_err(|e| PyErr::new::<pyo3::exceptions::PyValueError, _>(e.to_string()))?;
-    let pk = ed25519_dalek::PublicKey::from(&sk);
+    let pk = ed25519_dalek::VerifyingKey::from(&sk);
     let openssl_pk = openssl::pkey::PKey::public_key_from_raw_bytes(
         pk.as_bytes(), openssl::pkey::Id::ED25519
     ).unwrap();
@@ -49,7 +49,7 @@ fn make_csr(priv_key: &[u8], ca_nonce: &[u8]) -> PyResult<Vec<u8>> {
         buf
     };
 
-    let signature = sk.sign(&tbs_req, &pk).to_bytes();
+    let signature = ed25519_dalek::hazmat::raw_sign::<sha2::Sha512>(&sk, &tbs_req, &pk).to_bytes();
 
     let tbs_req: asn1::Sequence = asn1::parse_single(&tbs_req).unwrap();