diff --git a/account/wallet_test.go b/account/wallet_test.go
index 9d7ec27..63ee1ce 100644
--- a/account/wallet_test.go
+++ b/account/wallet_test.go
@@ -47,7 +47,7 @@ func TestPayload(t *testing.T) {
 		ToAddr:       "4BAF5faDA8e5Db92C3d3242618c5B47133AE003C",
 		Amount:       "10000000",
 		GasPrice:     gasPrice,
-		GasLimit:     "1",
+		GasLimit:     "50",
 		Code:         "",
 		Data:         "",
 		Priority:     false,
@@ -71,7 +71,7 @@ func TestWallet_SignWith(t *testing.T) {
 		Version:  "65535",
 		Amount:   "0",
 		GasPrice: "100000",
-		GasLimit: "1",
+		GasLimit: "50",
 	}
 	provider := provider2.NewProvider("https://dev-api.zilliqa.com/")
 	err := wallet.SignWith(tx, "9bfec715a6bd658fcb62b0f8cc9bfa2ade71434a", *provider)
@@ -96,7 +96,7 @@ func TestSendTransaction(t *testing.T) {
 		ToAddr:       "4BAF5faDA8e5Db92C3d3242618c5B47133AE003C",
 		Amount:       "10000000",
 		GasPrice:     gasPrice,
-		GasLimit:     "1",
+		GasLimit:     "50",
 		Code:         "",
 		Data:         "",
 		Priority:     false,
@@ -131,14 +131,14 @@ func TestBatchSendTransaction(t *testing.T) {
 	assert.Nil(t, err, err)
 
 	var transactions []*transaction.Transaction
-	for i := 0; i < 100; i++ {
+	for i := 0; i < 3; i++ {
 		txn := &transaction.Transaction{
 			Version:      strconv.FormatInt(int64(util.Pack(333, 1)), 10),
 			SenderPubKey: "0246E7178DC8253201101E18FD6F6EB9972451D121FC57AA2A06DD5C111E58DC6A",
 			ToAddr:       "4BAF5faDA8e5Db92C3d3242618c5B47133AE003C",
 			Amount:       "10000000",
 			GasPrice:     gasPrice,
-			GasLimit:     "1",
+			GasLimit:     "50",
 			Code:         "",
 			Data:         "",
 			Priority:     false,
@@ -175,7 +175,7 @@ func TestSendTransactionInsufficientAmount(t *testing.T) {
 		ToAddr:       "4BAF5faDA8e5Db92C3d3242618c5B47133AE003C",
 		Amount:       "2000000000000000000",
 		GasPrice:     gasPrice,
-		GasLimit:     "1",
+		GasLimit:     "50",
 		Code:         "",
 		Data:         "",
 		Priority:     false,
diff --git a/prover/prover.go b/prover/prover.go
index 457460d..3d900e3 100644
--- a/prover/prover.go
+++ b/prover/prover.go
@@ -3,6 +3,7 @@ package prover
 import (
 	"errors"
 	"fmt"
+
 	"github.com/Zilliqa/gozilliqa-sdk/core"
 	"github.com/Zilliqa/gozilliqa-sdk/mpt"
 	"github.com/Zilliqa/gozilliqa-sdk/provider"
@@ -40,7 +41,7 @@ func (p *StateProver) VerifyStateProof(contractAddr string, vname string, indice
 	}
 
 	db2 := mpt.NewFromProof(proof2)
-	storageKey := core.GenerateStorageKey(vname, indices)
+	storageKey := core.GenerateStorageKey(contractAddr, vname, indices)
 	value, err3 := mpt.Verify(storageKey, db2, accountBase.StorageRoot)
 	if err3 != nil {
 		msg := fmt.Sprintf("%s - %s", "get value error", err3.Error())
diff --git a/prover/prover_test.go b/prover/prover_test.go
index 96b3c2a..33071e6 100644
--- a/prover/prover_test.go
+++ b/prover/prover_test.go
@@ -1,9 +1,10 @@
 package prover
 
 import (
+	"testing"
+
 	"github.com/Zilliqa/gozilliqa-sdk/core"
 	"github.com/Zilliqa/gozilliqa-sdk/provider"
-	"testing"
 )
 
 func TestStateProver_VerifyStateProof(t *testing.T) {
@@ -22,7 +23,8 @@ func TestStateProver_VerifyStateProof(t *testing.T) {
 	t.Log("current block number is: ", blockNum)
 	t.Log("account root hash from tx block: ", accountHash)
 
-	stateProof, err := sp.RpcClient.GetStateProof(contractAddr, vname, indices, &blockNum)
+	storageKey := core.GenerateStorageKey(contractAddr, vname, indices)
+	stateProof, err := sp.RpcClient.GetStateProof(contractAddr, string(storageKey), &blockNum)
 	if err != nil {
 		t.Fatal(err)
 	}