diff --git a/hashes/zkevm/src/keccak/vanilla/mod.rs b/hashes/zkevm/src/keccak/vanilla/mod.rs
index 11baa66f..c049ed89 100644
--- a/hashes/zkevm/src/keccak/vanilla/mod.rs
+++ b/hashes/zkevm/src/keccak/vanilla/mod.rs
@@ -15,7 +15,7 @@ use crate::{
 };
 use halo2_base::utils::halo2::{raw_assign_advice, raw_assign_fixed};
 use itertools::Itertools;
-use log::{debug, info};
+use log::info;
 use rayon::prelude::{IntoParallelRefIterator, ParallelIterator};
 use serde::{Deserialize, Serialize};
 use std::marker::PhantomData;
diff --git a/hashes/zkevm/src/keccak/vanilla/witness.rs b/hashes/zkevm/src/keccak/vanilla/witness.rs
index bba2f05a..cea22f23 100644
--- a/hashes/zkevm/src/keccak/vanilla/witness.rs
+++ b/hashes/zkevm/src/keccak/vanilla/witness.rs
@@ -411,7 +411,7 @@ fn keccak<F: Field>(
                     .collect::<Vec<_>>()
             })
             .collect::<Vec<_>>();
-        debug!("hash: {:x?}", &(hash_bytes[0..4].concat()));
+        log::debug!("hash: {:x?}", &(hash_bytes[0..4].concat()));
         assert_eq!(length, bytes.len());
     }
 }