diff --git a/ed25519-dalek/src/signing.rs b/ed25519-dalek/src/signing.rs
index 23fab8f..e2818fe 100644
--- a/ed25519-dalek/src/signing.rs
+++ b/ed25519-dalek/src/signing.rs
@@ -746,10 +746,7 @@ impl<'d> Deserialize<'d> for SigningKey {
                 write!(formatter, concat!("An ed25519 signing (private) key"))
             }
 
-            fn visit_borrowed_bytes<E: serde::de::Error>(
-                self,
-                bytes: &'de [u8],
-            ) -> Result<Self::Value, E> {
+            fn visit_bytes<E: serde::de::Error>(self, bytes: &[u8]) -> Result<Self::Value, E> {
                 SigningKey::try_from(bytes).map_err(E::custom)
             }
 
diff --git a/ed25519-dalek/src/verifying.rs b/ed25519-dalek/src/verifying.rs
index 29f8a4d..b7e1297 100644
--- a/ed25519-dalek/src/verifying.rs
+++ b/ed25519-dalek/src/verifying.rs
@@ -636,10 +636,7 @@ impl<'d> Deserialize<'d> for VerifyingKey {
                 write!(formatter, concat!("An ed25519 verifying (public) key"))
             }
 
-            fn visit_borrowed_bytes<E: serde::de::Error>(
-                self,
-                bytes: &'de [u8],
-            ) -> Result<Self::Value, E> {
+            fn visit_bytes<E: serde::de::Error>(self, bytes: &[u8]) -> Result<Self::Value, E> {
                 VerifyingKey::try_from(bytes).map_err(E::custom)
             }