diff --git a/crates/iota-types/src/crypto.rs b/crates/iota-types/src/crypto.rs
index e9887a20102..a78c50b3ca7 100644
--- a/crates/iota-types/src/crypto.rs
+++ b/crates/iota-types/src/crypto.rs
@@ -1390,7 +1390,7 @@ impl<const STRONG_THRESHOLD: bool> AuthorityQuorumSignInfo<STRONG_THRESHOLD> {
     pub fn authorities<'a>(
         &'a self,
         committee: &'a Committee,
-    ) -> impl Iterator<Item = IotaResult<&AuthorityName>> {
+    ) -> impl Iterator<Item = IotaResult<&'a AuthorityName>> {
         self.signers_map.iter().map(|i| {
             committee
                 .authority_by_index(i)