diff --git a/src/crypto/proof.rs b/src/crypto/proof.rs
index 3a28b0652..e68439e2f 100644
--- a/src/crypto/proof.rs
+++ b/src/crypto/proof.rs
@@ -107,8 +107,8 @@ impl Decodable for Proof {
 mod tests {
     use super::*;
     use crate::{
-        zk::circuit::MintContract,
         crypto::{keypair::PublicKey, mint_proof::create_mint_proof},
+        zk::circuit::MintContract,
     };
     use halo2::arithmetic::Field;
     use rand::rngs::OsRng;
diff --git a/src/util/serial.rs b/src/util/serial.rs
index 2c5134c68..793e5f3ee 100644
--- a/src/util/serial.rs
+++ b/src/util/serial.rs
@@ -586,8 +586,11 @@ tuple_encode!(T0, T1, T2, T3, T4, T5, T6, T7);
 
 #[cfg(test)]
 mod tests {
-    use super::{deserialize, deserialize_partial, serialize, Encodable, Error, Result, VarInt};
-    use super::endian::{u16_to_array_le, u32_to_array_le, u64_to_array_le};
+    use super::{
+        deserialize, deserialize_partial,
+        endian::{u16_to_array_le, u32_to_array_le, u64_to_array_le},
+        serialize, Encodable, Error, Result, VarInt,
+    };
     use std::{io, mem::discriminant};
 
     #[test]