diff --git a/Sources/Core/Json/EthereumBlockObject.swift b/Sources/Core/Json/EthereumBlockObject.swift
index ee124579..11a7ffd7 100644
--- a/Sources/Core/Json/EthereumBlockObject.swift
+++ b/Sources/Core/Json/EthereumBlockObject.swift
@@ -69,6 +69,9 @@ public struct EthereumBlockObject: Codable {
     /// Array of uncle hashes.
     public let uncles: [EthereumData]?
 
+    /// The block base fees per gas (EIP-1559)
+    public let baseFeePerGas: EthereumQuantity?
+
     /**
      * Represents a transaction as either a hash or an object.
      */
diff --git a/Sources/Core/Json/EthereumTransactionReceiptObject.swift b/Sources/Core/Json/EthereumTransactionReceiptObject.swift
index b86caff6..688fadf2 100644
--- a/Sources/Core/Json/EthereumTransactionReceiptObject.swift
+++ b/Sources/Core/Json/EthereumTransactionReceiptObject.swift
@@ -27,6 +27,9 @@ public struct EthereumTransactionReceiptObject: Codable {
     /// The amount of gas used by this specific transaction alone.
     public let gasUsed: EthereumQuantity
 
+    /// The price per unit of gas paid by the sender
+    public let effectiveGasPrice: EthereumQuantity?
+
     /// 20 Bytes - The contract address created, if the transaction was a contract creation, otherwise nil.
     public let contractAddress: EthereumData?