diff --git a/stackslib/src/burnchains/tests/db.rs b/stackslib/src/burnchains/tests/db.rs
index c8f568b5bf..0b4e263c2c 100644
--- a/stackslib/src/burnchains/tests/db.rs
+++ b/stackslib/src/burnchains/tests/db.rs
@@ -59,7 +59,7 @@ impl BurnchainDB {
         let sql = "SELECT op FROM burnchain_db_block_ops WHERE block_hash = ?1";
         let args = params![block_hash];
         let mut ops: Vec<BlockstackOperationType> = query_rows(&self.conn, sql, args)?;
-        ops.sort_by(|a, b| a.vtxindex().cmp(&b.vtxindex()));
+        ops.sort_by_key(|op| op.vtxindex());
         Ok(ops)
     }
 
diff --git a/stackslib/src/chainstate/nakamoto/tests/mod.rs b/stackslib/src/chainstate/nakamoto/tests/mod.rs
index 0c242c0409..4a5af0cdd7 100644
--- a/stackslib/src/chainstate/nakamoto/tests/mod.rs
+++ b/stackslib/src/chainstate/nakamoto/tests/mod.rs
@@ -3049,7 +3049,7 @@ fn filter_one_transaction_per_signer_duplicate_nonces() {
         txs.clone(),
     );
     let filtered_txs: Vec<_> = filtered_transactions.into_values().collect();
-    txs.sort_by(|a, b| a.txid().cmp(&b.txid()));
+    txs.sort_by_key(|tx| tx.txid());
     assert_eq!(filtered_txs.len(), 1);
     assert!(filtered_txs.contains(&txs.first().expect("failed to get first tx")));
 }