diff --git a/halo2_gadgets/src/sha256/table16.rs b/halo2_gadgets/src/sha256/table16.rs
index 48a38ea5fb..41798978de 100644
--- a/halo2_gadgets/src/sha256/table16.rs
+++ b/halo2_gadgets/src/sha256/table16.rs
@@ -1,4 +1,4 @@
-use halo2_proofs::arithmetic::FieldExt as Field;
+use ff::PrimeField as Field;
 use halo2_proofs::{
     circuit::{AssignedCell, Chip, Layouter, Region, Value},
     plonk::{Advice, Any, Assigned, Column, ConstraintSystem, Error},
diff --git a/halo2_gadgets/src/sha256/table16/compression/compression_gates.rs b/halo2_gadgets/src/sha256/table16/compression/compression_gates.rs
index b7a23735d3..2828a49182 100644
--- a/halo2_gadgets/src/sha256/table16/compression/compression_gates.rs
+++ b/halo2_gadgets/src/sha256/table16/compression/compression_gates.rs
@@ -1,6 +1,6 @@
 use super::super::{util::*, Gate};
-use ff::PrimeField;
 use crate::utilities::range_check;
+use ff::PrimeField;
 use halo2_proofs::plonk::{Constraint, Constraints, Expression};
 use std::marker::PhantomData;
 
diff --git a/halo2_gadgets/src/sha256/table16/spread_table.rs b/halo2_gadgets/src/sha256/table16/spread_table.rs
index 0d016656c9..87a71efd52 100644
--- a/halo2_gadgets/src/sha256/table16/spread_table.rs
+++ b/halo2_gadgets/src/sha256/table16/spread_table.rs
@@ -1,7 +1,6 @@
 use super::{util::*, AssignedBits, Field};
 use ff::PrimeField;
 use halo2_proofs::{
-    arithmetic::Field,
     circuit::{Chip, Layouter, Region, Value},
     plonk::{Advice, Column, ConstraintSystem, Error, TableColumn},
 };