diff --git a/libweb3jsonrpc/Eth.cpp b/libweb3jsonrpc/Eth.cpp
index 11097c4fd..ba032a18a 100644
--- a/libweb3jsonrpc/Eth.cpp
+++ b/libweb3jsonrpc/Eth.cpp
@@ -962,7 +962,7 @@ Json::Value Eth::eth_createAccessList(
     return result;
 }
 
-Json::Value Eth::eth_feeHistory( const std::string& _blockCount, const std::string& _newestBlock,
+Json::Value Eth::eth_feeHistory( dev::u256 _blockCount, const std::string& _newestBlock,
     const Json::Value& _rewardPercentiles ) {
     try {
         if ( !_rewardPercentiles.isArray() )
@@ -974,8 +974,7 @@ Json::Value Eth::eth_feeHistory( const std::string& _blockCount, const std::stri
             }
         }
 
-        auto blockCount = jsToU256( _blockCount );
-        if ( blockCount > MAX_BLOCK_RANGE )
+        if ( _blockCount > MAX_BLOCK_RANGE )
             throw std::runtime_error( "Max block range reached. Please try smaller blockCount." );
 
         auto newestBlock = jsToBlockNumber( _newestBlock );
@@ -984,10 +983,10 @@ Json::Value Eth::eth_feeHistory( const std::string& _blockCount, const std::stri
 
         auto result = Json::Value( Json::objectValue );
         dev::u256 oldestBlock;
-        if ( blockCount > newestBlock )
+        if ( _blockCount > newestBlock )
             oldestBlock = 1;
         else
-            oldestBlock = dev::u256( newestBlock ) - blockCount + 1;
+            oldestBlock = dev::u256( newestBlock ) - _blockCount + 1;
         result["oldestBlock"] = toJS( oldestBlock );
 
         result["baseFeePerGas"] = Json::Value( Json::arrayValue );
diff --git a/libweb3jsonrpc/Eth.h b/libweb3jsonrpc/Eth.h
index 2ecf0be5d..ae4c011f2 100644
--- a/libweb3jsonrpc/Eth.h
+++ b/libweb3jsonrpc/Eth.h
@@ -219,7 +219,7 @@ class Eth : public dev::rpc::EthFace, public skutils::json_config_file_accessor
     virtual Json::Value eth_createAccessList(
         const Json::Value& param1, const std::string& param2 ) override;
     virtual Json::Value eth_feeHistory(
-        const std::string& param1, const std::string& param2, const Json::Value& param3 ) override;
+        dev::u256 param1, const std::string& param2, const Json::Value& param3 ) override;
     virtual std::string eth_maxPriorityFeePerGas() override;
 
     void setTransactionDefaults( eth::TransactionSkeleton& _t );
diff --git a/libweb3jsonrpc/EthFace.h b/libweb3jsonrpc/EthFace.h
index c87edf57b..a7f7991c8 100644
--- a/libweb3jsonrpc/EthFace.h
+++ b/libweb3jsonrpc/EthFace.h
@@ -7,6 +7,7 @@
 
 #include "ModularServer.h"
 
+#include <libdevcore/CommonJS.h>
 #include <libethereum/TransactionReceipt.h>
 #include <libweb3jsonrpc/JsonHelper.h>
 
@@ -222,8 +223,7 @@ class EthFace : public ServerInterface< EthFace > {
                                     jsonrpc::JSON_OBJECT, "param2", jsonrpc::JSON_STRING, NULL ),
             &dev::rpc::EthFace::eth_createAccessListI );
         this->bindAndAddMethod( jsonrpc::Procedure( "eth_feeHistory", jsonrpc::PARAMS_BY_POSITION,
-                                    jsonrpc::JSON_OBJECT, "param1", jsonrpc::JSON_STRING, "param2",
-                                    jsonrpc::JSON_STRING, "param3", jsonrpc::JSON_ARRAY, NULL ),
+                                    jsonrpc::JSON_OBJECT, NULL ),
             &dev::rpc::EthFace::eth_feeHistoryI );
         this->bindAndAddMethod( jsonrpc::Procedure( "eth_maxPriorityFeePerGas",
                                     jsonrpc::PARAMS_BY_POSITION, jsonrpc::JSON_STRING, NULL ),
@@ -449,8 +449,12 @@ class EthFace : public ServerInterface< EthFace > {
         if ( !request.isArray() || request.size() != 3 )
             BOOST_THROW_EXCEPTION(
                 jsonrpc::JsonRpcException( jsonrpc::Errors::ERROR_RPC_INVALID_PARAMS ) );
-        response =
-            this->eth_feeHistory( request[0u].asString(), request[1u].asString(), request[2u] );
+        if ( !request[0u].isString() && !request[0u].isUInt() )
+            BOOST_THROW_EXCEPTION(
+                jsonrpc::JsonRpcException( jsonrpc::Errors::ERROR_RPC_INVALID_PARAMS ) );
+        auto blockCount = request[0u].isString() ? dev::jsToU256( request[0u].asString() ) :
+                                                   dev::u256( request[0u].asUInt() );
+        response = this->eth_feeHistory( blockCount, request[1u].asString(), request[2u] );
     }
     inline virtual void eth_maxPriorityFeePerGasI(
         const Json::Value& request, Json::Value& response ) {
@@ -525,7 +529,7 @@ class EthFace : public ServerInterface< EthFace > {
     virtual Json::Value eth_createAccessList(
         const Json::Value& param1, const std::string& param2 ) = 0;
     virtual Json::Value eth_feeHistory(
-        const std::string& param1, const std::string& param2, const Json::Value& param3 ) = 0;
+        dev::u256 param1, const std::string& param2, const Json::Value& param3 ) = 0;
     virtual std::string eth_maxPriorityFeePerGas() = 0;
 };
 
diff --git a/test/unittests/libweb3jsonrpc/WebThreeStubClient.cpp b/test/unittests/libweb3jsonrpc/WebThreeStubClient.cpp
index 6891aacef..c297164dc 100644
--- a/test/unittests/libweb3jsonrpc/WebThreeStubClient.cpp
+++ b/test/unittests/libweb3jsonrpc/WebThreeStubClient.cpp
@@ -842,9 +842,12 @@ Json::Value WebThreeStubClient::eth_createAccessList( const Json::Value& param1,
             jsonrpc::Errors::ERROR_CLIENT_INVALID_RESPONSE, result.toStyledString() );
 }
 
-Json::Value WebThreeStubClient::eth_feeHistory( const std::string& param1, const std::string& param2, const Json::Value& param3 ) {
+Json::Value WebThreeStubClient::eth_feeHistory( const Json::Value& param1, const std::string& param2, const Json::Value& param3 ) {
     Json::Value p;
-    p.append( param1 );
+    if ( param1.isString() )
+        p.append( param1.asString() );
+    if ( param1.isUInt() )
+        p.append( param1.asUInt() );
     p.append( param2 );
     p.append( param3 );
     Json::Value result = this->CallMethod( "eth_feeHistory", p );
diff --git a/test/unittests/libweb3jsonrpc/WebThreeStubClient.h b/test/unittests/libweb3jsonrpc/WebThreeStubClient.h
index 2be6ca519..9125b97ab 100644
--- a/test/unittests/libweb3jsonrpc/WebThreeStubClient.h
+++ b/test/unittests/libweb3jsonrpc/WebThreeStubClient.h
@@ -5,6 +5,8 @@
 #ifndef JSONRPC_CPP_STUB_WEBTHREESTUBCLIENT_H_
 #define JSONRPC_CPP_STUB_WEBTHREESTUBCLIENT_H_
 
+#include <any>
+
 #include <jsonrpccpp/client.h>
 
 class WebThreeStubClient : public jsonrpc::Client {
@@ -98,7 +100,7 @@ class WebThreeStubClient : public jsonrpc::Client {
     std::string eth_sendRawTransaction( const std::string& param1 ) noexcept( false );
     std::string eth_maxPriorityFeePerGas() noexcept( false );
     Json::Value eth_createAccessList( const Json::Value& param1, const std::string& param2 ) noexcept( false );
-    Json::Value eth_feeHistory( const std::string& param1, const std::string& param2, const Json::Value& param3 ) noexcept( false );
+    Json::Value eth_feeHistory( const Json::Value& param1, const std::string& param2, const Json::Value& param3 ) noexcept( false );
     bool eth_notePassword( const std::string& param1 ) noexcept( false );
     bool db_put( const std::string& param1, const std::string& param2,
         const std::string& param3 ) noexcept( false );
diff --git a/test/unittests/libweb3jsonrpc/jsonrpc.cpp b/test/unittests/libweb3jsonrpc/jsonrpc.cpp
index 5bb027f68..471f3833f 100644
--- a/test/unittests/libweb3jsonrpc/jsonrpc.cpp
+++ b/test/unittests/libweb3jsonrpc/jsonrpc.cpp
@@ -3227,6 +3227,8 @@ BOOST_AUTO_TEST_CASE( eip1559RpcMethods ) {
             BOOST_REQUIRE_EQUAL( feeHistory["reward"][i][j].asString(), toJS( 0 ) );
         }
     }
+
+    BOOST_REQUIRE_NO_THROW( fixture.rpcClient->eth_feeHistory( blockCnt, "latest", percentiles ) );
 }
 
 BOOST_AUTO_TEST_CASE( etherbase_generation2 ) {