diff --git a/crates/config/src/sections/secrets.rs b/crates/config/src/sections/secrets.rs
index 7886e9a57..4bfd30ce3 100644
--- a/crates/config/src/sections/secrets.rs
+++ b/crates/config/src/sections/secrets.rs
@@ -149,7 +149,7 @@ impl KeyConfig {
     /// Returns the password in case any is provided.
     ///
     /// If `password_file` was given, the password is read from that file.
-    async fn password(&self) -> anyhow::Result<Option<Cow<[u8]>>> {
+    async fn password(&self) -> anyhow::Result<Option<Cow<'_, [u8]>>> {
         Ok(match &self.password {
             Some(Password::File(path)) => Some(Cow::Owned(tokio::fs::read(path).await?)),
             Some(Password::Value(password)) => Some(Cow::Borrowed(password.as_bytes())),
@@ -160,7 +160,7 @@ impl KeyConfig {
     /// Returns the key.
     ///
     /// If `key_file` was given, the key is read from that file.
-    async fn key(&self) -> anyhow::Result<Cow<[u8]>> {
+    async fn key(&self) -> anyhow::Result<Cow<'_, [u8]>> {
         Ok(match &self.key {
             Key::File(path) => Cow::Owned(tokio::fs::read(path).await?),
             Key::Value(key) => Cow::Borrowed(key.as_bytes()),
diff --git a/crates/data-model/src/oauth2/authorization_grant.rs b/crates/data-model/src/oauth2/authorization_grant.rs
index 383701bcb..d6699f575 100644
--- a/crates/data-model/src/oauth2/authorization_grant.rs
+++ b/crates/data-model/src/oauth2/authorization_grant.rs
@@ -173,7 +173,7 @@ impl std::ops::Deref for AuthorizationGrant {
 
 impl AuthorizationGrant {
     #[must_use]
-    pub fn parse_login_hint(&self, homeserver: &str) -> LoginHint {
+    pub fn parse_login_hint(&self, homeserver: &str) -> LoginHint<'_> {
         let Some(login_hint) = &self.login_hint else {
             return LoginHint::None;
         };
diff --git a/crates/oidc-client/tests/it/main.rs b/crates/oidc-client/tests/it/main.rs
index ce595661d..cc8641085 100644
--- a/crates/oidc-client/tests/it/main.rs
+++ b/crates/oidc-client/tests/it/main.rs
@@ -74,7 +74,7 @@ fn keystore(alg: &JsonWebSignatureAlg) -> Keystore {
 }
 
 /// Generate an ID token.
-fn id_token(issuer: &str) -> (IdToken, PublicJsonWebKeySet) {
+fn id_token(issuer: &str) -> (IdToken<'_>, PublicJsonWebKeySet) {
     let signing_alg = ID_TOKEN_SIGNING_ALG;
 
     let keystore = keystore(&signing_alg);
diff --git a/crates/oidc-client/tests/it/requests/jose.rs b/crates/oidc-client/tests/it/requests/jose.rs
index dcca40252..6adedc570 100644
--- a/crates/oidc-client/tests/it/requests/jose.rs
+++ b/crates/oidc-client/tests/it/requests/jose.rs
@@ -34,7 +34,7 @@ fn id_token(
     issuer: &str,
     flag: Option<IdTokenFlag>,
     auth_time: Option<DateTime<Utc>>,
-) -> (IdToken, PublicJsonWebKeySet) {
+) -> (IdToken<'_>, PublicJsonWebKeySet) {
     let signing_alg = ID_TOKEN_SIGNING_ALG;
 
     let keystore = keystore(&signing_alg);