diff --git a/gasprice/gasprice.go b/gasprice/gasprice.go
index c84f0a3f96..a800a26002 100644
--- a/gasprice/gasprice.go
+++ b/gasprice/gasprice.go
@@ -42,8 +42,8 @@ type Config struct {
 	IgnorePrice *big.Int
 }
 
-// Backend is the interface representing blockchain and consensus backend
-type Backend interface {
+// Blockchain is the interface representing blockchain
+type Blockchain interface {
 	GetBlockByHash(hash types.Hash, full bool) (*types.Block, bool)
 	Header() *types.Header
 	Config() *chain.Params
@@ -73,7 +73,7 @@ type GasHelper struct {
 	// when collecting transactions
 	ignorePrice *big.Int
 	// backend is an abstraction of blockchain
-	backend Backend
+	backend Blockchain
 	// lastHeaderHash is the last header for which maxPriorityFeePerGas was returned
 	lastHeaderHash types.Hash
 
@@ -81,7 +81,7 @@ type GasHelper struct {
 }
 
 // NewGasHelper is the constructor function for GasHelper struct
-func NewGasHelper(config *Config, backend Backend) *GasHelper {
+func NewGasHelper(config *Config, backend Blockchain) *GasHelper {
 	pricePercentile := config.PricePercentile
 	if pricePercentile > 100 {
 		pricePercentile = 100
@@ -199,7 +199,9 @@ func (g *GasHelper) MaxPriorityFeePerGas() (*big.Int, error) {
 
 	if len(allPrices) > 0 {
 		// sort prices from lowest to highest
-		sort.Sort(bigIntSorted(allPrices))
+		sort.Slice(allPrices, func(i, j int) bool {
+			return allPrices[i].Cmp(allPrices[j]) < 0
+		})
 		// take the biggest price that is in the configured percentage
 		// by default it's 60, so it will take the price on that percentage
 		// of all prices in the array
@@ -250,19 +252,3 @@ func (t *txSortedByEffectiveTip) Less(i, j int) bool {
 
 	return tip1.Cmp(tip2) < 0
 }
-
-// bigIntSorted sorts big int slice from lowest to highest value
-type bigIntSorted []*big.Int
-
-// Len is implementation of sort.Interface
-func (b bigIntSorted) Len() int { return len(b) }
-
-// Less is implementation of sort.Interface
-func (b bigIntSorted) Less(i, j int) bool {
-	return b[i].Cmp(b[j]) < 0
-}
-
-// Swap is implementation of sort.Interface
-func (b bigIntSorted) Swap(i, j int) {
-	b[i], b[j] = b[j], b[i]
-}
diff --git a/gasprice/gasprice_test.go b/gasprice/gasprice_test.go
index 666d4ae312..f4ff7bbde3 100644
--- a/gasprice/gasprice_test.go
+++ b/gasprice/gasprice_test.go
@@ -23,12 +23,12 @@ func TestGasHelper_MaxPriorityFeePerGas(t *testing.T) {
 		Name       string
 		Expected   *big.Int
 		Error      bool
-		GetBackend func() Backend
+		GetBackend func() Blockchain
 	}{
 		{
 			Name:     "Chain just started",
 			Expected: DefaultGasHelperConfig.LastPrice,
-			GetBackend: func() Backend {
+			GetBackend: func() Blockchain {
 				genesis := &types.Header{
 					Number: 0,
 					Hash:   types.StringToHash("genesis"),
@@ -46,7 +46,7 @@ func TestGasHelper_MaxPriorityFeePerGas(t *testing.T) {
 		{
 			Name:  "Block does not exist",
 			Error: true,
-			GetBackend: func() Backend {
+			GetBackend: func() Blockchain {
 				header := &types.Header{
 					Number: 0,
 					Hash:   types.StringToHash("some header"),
@@ -61,7 +61,7 @@ func TestGasHelper_MaxPriorityFeePerGas(t *testing.T) {
 		{
 			Name:     "Empty blocks",
 			Expected: DefaultGasHelperConfig.LastPrice, // should return last (default) price
-			GetBackend: func() Backend {
+			GetBackend: func() Blockchain {
 				backend := createTestBlocks(t, 10)
 
 				return backend
@@ -70,7 +70,7 @@ func TestGasHelper_MaxPriorityFeePerGas(t *testing.T) {
 		{
 			Name:     "All transactions by miner",
 			Expected: DefaultGasHelperConfig.LastPrice, // should return last (default) price
-			GetBackend: func() Backend {
+			GetBackend: func() Blockchain {
 				backend := createTestBlocks(t, 10)
 				rand.Seed(time.Now().UTC().UnixNano())
 
@@ -106,7 +106,7 @@ func TestGasHelper_MaxPriorityFeePerGas(t *testing.T) {
 		{
 			Name:     "All transactions have small effective tip",
 			Expected: DefaultGasHelperConfig.LastPrice, // should return last (default) price
-			GetBackend: func() Backend {
+			GetBackend: func() Blockchain {
 				backend := createTestBlocks(t, 10)
 				createTestTxs(t, backend, 3, 1)
 
@@ -117,7 +117,7 @@ func TestGasHelper_MaxPriorityFeePerGas(t *testing.T) {
 			Name: "Number of blocks in chain smaller than numOfBlocksToCheck",
 			Expected: DefaultGasHelperConfig.LastPrice.Mul(
 				DefaultGasHelperConfig.LastPrice, big.NewInt(2)), // at least two times of default last price
-			GetBackend: func() Backend {
+			GetBackend: func() Blockchain {
 				backend := createTestBlocks(t, 10)
 				createTestTxs(t, backend, 3, 200)
 
@@ -128,7 +128,7 @@ func TestGasHelper_MaxPriorityFeePerGas(t *testing.T) {
 			Name: "Number of blocks in chain higher than numOfBlocksToCheck",
 			Expected: DefaultGasHelperConfig.LastPrice.Mul(
 				DefaultGasHelperConfig.LastPrice, big.NewInt(2)), // at least two times of default last price
-			GetBackend: func() Backend {
+			GetBackend: func() Blockchain {
 				backend := createTestBlocks(t, 30)
 				createTestTxs(t, backend, 3, 200)
 
@@ -139,7 +139,7 @@ func TestGasHelper_MaxPriorityFeePerGas(t *testing.T) {
 			Name: "Not enough transactions in first 20 blocks, so read some more blocks",
 			Expected: DefaultGasHelperConfig.LastPrice.Mul(
 				DefaultGasHelperConfig.LastPrice, big.NewInt(2)), // at least two times of default last price
-			GetBackend: func() Backend {
+			GetBackend: func() Blockchain {
 				backend := createTestBlocks(t, 50)
 				createTestTxs(t, backend, 1, 200)
 
@@ -233,7 +233,7 @@ func createTestTxs(t *testing.T, backend *backendMock, numOfTxsPerBlock, txCap i
 	}
 }
 
-var _ Backend = (*backendMock)(nil)
+var _ Blockchain = (*backendMock)(nil)
 
 type backendMock struct {
 	mock.Mock