diff --git a/crates/erc20_payment_lib/src/contracts.rs b/crates/erc20_payment_lib/src/contracts.rs
index 7290233c..ae7e9658 100644
--- a/crates/erc20_payment_lib/src/contracts.rs
+++ b/crates/erc20_payment_lib/src/contracts.rs
@@ -5,7 +5,7 @@ use crate::error::PaymentError;
 use std::str::FromStr;
 use web3::contract::tokens::Tokenize;
 use web3::contract::Contract;
-use web3::ethabi::{FixedBytes, Hash};
+
 use web3::transports::Http;
 use web3::types::{Address, H256, U256};
 use web3::{ethabi, Transport, Web3};
diff --git a/crates/erc20_payment_lib/src/eth.rs b/crates/erc20_payment_lib/src/eth.rs
index a040ea21..bcc5416b 100644
--- a/crates/erc20_payment_lib/src/eth.rs
+++ b/crates/erc20_payment_lib/src/eth.rs
@@ -10,7 +10,7 @@ use erc20_payment_lib_common::utils::{
 };
 use erc20_rpc_pool::Web3RpcPool;
 use secp256k1::{PublicKey, SecretKey};
-use serde::{Deserialize, Serialize};
+use serde::{Serialize};
 use sha3::Digest;
 use sha3::Keccak256;
 use std::sync::Arc;
diff --git a/crates/erc20_payment_lib/src/server/web.rs b/crates/erc20_payment_lib/src/server/web.rs
index 0381d4c3..1ea5fddd 100644
--- a/crates/erc20_payment_lib/src/server/web.rs
+++ b/crates/erc20_payment_lib/src/server/web.rs
@@ -16,7 +16,7 @@ use chrono::{DateTime, Utc};
 use erc20_payment_lib_common::model::DepositId;
 use erc20_payment_lib_common::ops::*;
 use erc20_payment_lib_common::utils::datetime_from_u256_timestamp;
-use erc20_payment_lib_common::{err_custom_create, export_metrics_to_prometheus, FaucetData};
+use erc20_payment_lib_common::{export_metrics_to_prometheus, FaucetData};
 use erc20_rpc_pool::VerifyEndpointResult;
 use serde::{Deserialize, Serialize};
 use serde_json::json;
@@ -1246,7 +1246,7 @@ pub async fn check_attestation(
     data: Data<Box<ServerData>>,
     req: HttpRequest,
 ) -> actix_web::Result<web::Json<AttestationCheckResult>> {
-    let my_data = data.shared_state.lock().unwrap();
+    let _my_data = data.shared_state.lock().unwrap();
 
     let attestation_uid = req.match_info().get("uid").unwrap_or("");
     let chain_name = req.match_info().get("chain").unwrap_or("");