diff --git a/ikura/chain/node/src/chain_spec/mod.rs b/ikura/chain/node/src/chain_spec/mod.rs
index 723bce8c..d60f00b5 100644
--- a/ikura/chain/node/src/chain_spec/mod.rs
+++ b/ikura/chain/node/src/chain_spec/mod.rs
@@ -1,8 +1,7 @@
 use cumulus_primitives_core::ParaId;
-use ikura_kusama_runtime::Runtime;
 use ikura_primitives::{AccountId, AuraId, Signature};
 use ikura_test_runtime::{
-    Multiplier, Runtime as TestRuntime, EXISTENTIAL_DEPOSIT as TEST_EXISTENTIAL_DEPOSIT,
+    Multiplier, EXISTENTIAL_DEPOSIT as TEST_EXISTENTIAL_DEPOSIT,
 };
 use sc_chain_spec::{ChainSpecExtension, ChainSpecGroup};
 use sc_service::ChainType;
diff --git a/ikura/chain/pallets/length-fee-adjustment/src/lib.rs b/ikura/chain/pallets/length-fee-adjustment/src/lib.rs
index cf3f0e78..1c01a8f0 100644
--- a/ikura/chain/pallets/length-fee-adjustment/src/lib.rs
+++ b/ikura/chain/pallets/length-fee-adjustment/src/lib.rs
@@ -55,7 +55,6 @@ pub mod pallet {
     use frame_system::pallet_prelude::*;
     use pallet_transaction_payment::{Multiplier, OnChargeTransaction};
     use polkadot_primitives::v6::{BlockNumber as RelayChainBlockNumber, PersistedValidationData};
-    use sp_arithmetic::FixedU128;
     use sp_runtime::{
         traits::{Get, One, Zero},
         FixedPointNumber, Perquintill, SaturatedConversion, Saturating,