diff --git a/core/store/src/adapter/epoch_store.rs b/core/store/src/adapter/epoch_store.rs
index bea314abe72..bd2612f10f7 100644
--- a/core/store/src/adapter/epoch_store.rs
+++ b/core/store/src/adapter/epoch_store.rs
@@ -51,9 +51,8 @@ impl EpochStoreAdapter {
     }
 
     // Iterate over all the epoch infos in store
-    pub fn iter_epoch_info<'a>(&'a self) -> Box<dyn Iterator<Item = (EpochId, EpochInfo)> + 'a> {
-        let iter = self
-            .store
+    pub fn iter_epoch_info<'a>(&'a self) -> impl Iterator<Item = (EpochId, EpochInfo)> + 'a {
+        self.store
             .iter(DBCol::EpochInfo)
             .map(Result::unwrap)
             .filter(|(key, _)| key.as_ref() != AGGREGATOR_KEY)
@@ -62,8 +61,7 @@ impl EpochStoreAdapter {
                     EpochId::try_from_slice(key.as_ref()).unwrap(),
                     EpochInfo::try_from_slice(value.as_ref()).unwrap(),
                 )
-            });
-        Box::new(iter)
+            })
     }
 
     pub fn get_epoch_sync_proof(&self) -> Result<Option<EpochSyncProofV1>, Error> {