diff --git a/core/benches/shredder.rs b/core/benches/shredder.rs
index ec157bf98b..7a7b07f9ae 100644
--- a/core/benches/shredder.rs
+++ b/core/benches/shredder.rs
@@ -9,7 +9,7 @@ use solana_ledger::shred::{
 };
 use solana_perf::test_tx;
 use solana_sdk::hash::Hash;
-use solana_sdk::signature::{Keypair, Signer};
+use solana_sdk::signature::Keypair;
 use std::sync::Arc;
 use test::Bencher;
 
diff --git a/ledger/benches/sigverify_shreds.rs b/ledger/benches/sigverify_shreds.rs
index 400e71aed0..f4244606b7 100644
--- a/ledger/benches/sigverify_shreds.rs
+++ b/ledger/benches/sigverify_shreds.rs
@@ -8,7 +8,7 @@ use solana_ledger::sigverify_shreds::{
 };
 use solana_perf::packet::{Packet, Packets};
 use solana_perf::recycler_cache::RecyclerCache;
-use solana_sdk::signature::{Keypair, Signer};
+use solana_sdk::signature::Keypair;
 use std::sync::Arc;
 use test::Bencher;