diff --git a/rpc/block.go b/rpc/block.go
index 921b8d45..aa4b7de6 100644
--- a/rpc/block.go
+++ b/rpc/block.go
@@ -49,17 +49,18 @@ func WithBlockTag(tag string) BlockID {
 // BlockWithTxHashes gets block information given the block id.
 func (provider *Provider) BlockWithTxHashes(ctx context.Context, blockID BlockID) (interface{}, error) {
 	var result BlockTxHashes
-	if err := do(ctx, provider.c, "starknet_getBlockWithTxHashes", &result, blockID); err != nil {		
-		return nil, tryUnwrapToRPCErr(err,ErrBlockNotFound )
+	if err := do(ctx, provider.c, "starknet_getBlockWithTxHashes", &result, blockID); err != nil {
+		return nil, tryUnwrapToRPCErr(err, ErrBlockNotFound)
 	}
 
 	// if header.Hash == nil it's a pending block
 	if result.BlockHeader.BlockHash == nil {
 		return &PendingBlockTxHashes{
-			ParentHash:       result.ParentHash,
-			Timestamp:        result.Timestamp,
-			SequencerAddress: result.SequencerAddress,
-			Transactions:     result.Transactions,
+			PendingBlockHeader{
+				ParentHash:       result.ParentHash,
+				Timestamp:        result.Timestamp,
+				SequencerAddress: result.SequencerAddress},
+			result.Transactions,
 		}, nil
 	}
 
@@ -96,10 +97,11 @@ func (provider *Provider) BlockWithTxs(ctx context.Context, blockID BlockID) (in
 	// if header.Hash == nil it's a pending block
 	if result.BlockHeader.BlockHash == nil {
 		return &PendingBlock{
-			ParentHash:       result.ParentHash,
-			Timestamp:        result.Timestamp,
-			SequencerAddress: result.SequencerAddress,
-			Transactions:     result.Transactions,
+			PendingBlockHeader{
+				ParentHash:       result.ParentHash,
+				Timestamp:        result.Timestamp,
+				SequencerAddress: result.SequencerAddress},
+			result.Transactions,
 		}, nil
 	}
 	return &result, nil
diff --git a/rpc/block_test.go b/rpc/block_test.go
index 58beccd2..c9c2d390 100644
--- a/rpc/block_test.go
+++ b/rpc/block_test.go
@@ -127,12 +127,14 @@ func TestBlockWithTxHashes(t *testing.T) {
 	testSet := map[string][]testSetType{
 		"mock": {
 			{
-				BlockID: BlockID{Tag: "latest"},
+				BlockID:       BlockID{Tag: "latest"},
+				ExpectedError: nil,
 				ExpectedPendingBlockWithTxHashes: &PendingBlockTxHashes{
-					ParentHash:       &felt.Zero,
-					Timestamp:        123,
-					SequencerAddress: &felt.Zero,
-					Transactions:     txHashes,    
+					PendingBlockHeader{
+						ParentHash:       &felt.Zero,
+						Timestamp:        123,
+						SequencerAddress: &felt.Zero},
+					txHashes,
 				},
 			},
 			{
@@ -166,14 +168,12 @@ func TestBlockWithTxHashes(t *testing.T) {
 		},
 		"mainnet": {},
 	}[testEnv]
-	
+
 	for _, test := range testSet {
 		spy := NewSpy(testConfig.provider.c)
 		testConfig.provider.c = spy
 		result, err := testConfig.provider.BlockWithTxHashes(context.Background(), test.BlockID)
-		if err != test.ExpectedError {
-			t.Fatal("BlockWithTxHashes match the expected error:", err)
-		}
+		require.Equal(t, test.ExpectedError, err, "Error in BlockWithTxHashes")
 		switch resultType := result.(type) {
 		case *BlockTxHashes:
 			block, ok := result.(*BlockTxHashes)
@@ -207,7 +207,7 @@ func TestBlockWithTxHashes(t *testing.T) {
 			if !ok {
 				t.Fatalf("should return *PendingBlockTxHashes, instead: %T\n", result)
 			}
-			
+
 			require.Equal(t, pBlock.ParentHash, test.ExpectedPendingBlockWithTxHashes.ParentHash, "Error in PendingBlockTxHashes ParentHash")
 			require.Equal(t, pBlock.SequencerAddress, test.ExpectedPendingBlockWithTxHashes.SequencerAddress, "Error in PendingBlockTxHashes SequencerAddress")
 			require.Equal(t, pBlock.Timestamp, test.ExpectedPendingBlockWithTxHashes.Timestamp, "Error in PendingBlockTxHashes Timestamp")
diff --git a/rpc/mock_test.go b/rpc/mock_test.go
index e84b3246..97e4982f 100644
--- a/rpc/mock_test.go
+++ b/rpc/mock_test.go
@@ -634,16 +634,21 @@ func mock_starknet_getBlockWithTxHashes(result interface{}, method string, args
 	}
 
 	if blockId.Tag == "latest" {
-		pBlock, err := json.Marshal(PendingBlockTxHashes{
-			ParentHash:       &felt.Zero,
-			Timestamp:        123,
-			SequencerAddress: &felt.Zero,
-			Transactions:     txHashes,
-		})
+		pBlock, err := json.Marshal(
+			PendingBlockTxHashes{
+				PendingBlockHeader{
+					ParentHash:       &felt.Zero,
+					Timestamp:        123,
+					SequencerAddress: &felt.Zero},
+				txHashes,
+			})
+		if err != nil {
+			return err
+		}
+		err = json.Unmarshal(pBlock, &r)
 		if err != nil {
 			return err
 		}
-		json.Unmarshal(pBlock, &r)
 	} else {
 		blockHash, err := utils.HexToFelt("0xbeef")
 		if err != nil {
diff --git a/rpc/types_block.go b/rpc/types_block.go
index 143ee34a..ec2b007c 100644
--- a/rpc/types_block.go
+++ b/rpc/types_block.go
@@ -89,14 +89,8 @@ type Block struct {
 }
 
 type PendingBlock struct {
-	// ParentHash The hash of this block's parent
-	ParentHash *felt.Felt `json:"parent_hash"`
-	// Timestamp the time in which the block was created, encoded in Unix time
-	Timestamp uint64 `json:"timestamp"`
-	// SequencerAddress the StarkNet identity of the sequencer submitting this block
-	SequencerAddress *felt.Felt `json:"sequencer_address"`
-	// Transactions The transactions in this block
-	Transactions BlockTransactions `json:"transactions"`
+	PendingBlockHeader
+	BlockTransactions
 }
 
 type BlockTxHashes struct {
@@ -107,13 +101,7 @@ type BlockTxHashes struct {
 }
 
 type PendingBlockTxHashes struct {
-	// ParentHash The hash of this block's parent
-	ParentHash *felt.Felt `json:"parent_hash"`
-	// Timestamp the time in which the block was created, encoded in Unix time
-	Timestamp uint64 `json:"timestamp"`
-	// SequencerAddress the StarkNet identity of the sequencer submitting this block
-	SequencerAddress *felt.Felt `json:"sequencer_address"`
-	// Transactions The hashes of the transactions included in this block
+	PendingBlockHeader
 	Transactions []*felt.Felt `json:"transactions"`
 }
 
@@ -130,4 +118,28 @@ type BlockHeader struct {
 	Timestamp uint64 `json:"timestamp"`
 	// SequencerAddress the StarkNet identity of the sequencer submitting this block
 	SequencerAddress *felt.Felt `json:"sequencer_address"`
+	// The price of l1 gas in the block
+	L1GasPrice ResourcePrice `json:"l1_gas_price"`
+	// Semver of the current Starknet protocol
+	StarknetVersion string `json:"starknet_version"`
+}
+
+type PendingBlockHeader struct {
+	// ParentHash The hash of this block's parent
+	ParentHash *felt.Felt `json:"parent_hash"`
+	// Timestamp the time in which the block was created, encoded in Unix time
+	Timestamp uint64 `json:"timestamp"`
+	// SequencerAddress the StarkNet identity of the sequencer submitting this block
+	SequencerAddress *felt.Felt `json:"sequencer_address"`
+	// The price of l1 gas in the block
+	L1GasPrice ResourcePrice `json:"l1_gas_price"`
+	// Semver of the current Starknet protocol
+	StarknetVersion string `json:"starknet_version"`
+}
+
+type ResourcePrice struct {
+	// The price of one unit of the given resource, denominated in strk
+	PriceInStrk NumAsHex `json:"price_in_strk,omitempty"`
+	// The price of one unit of the given resource, denominated in wei
+	PriceInWei NumAsHex `json:"price_in_wei"`
 }