diff --git a/Dockerfile b/Dockerfile
index d62f7cb0..201842da 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1.2
 
-FROM ghcr.io/streamingfast/firehose-core:a4ba225 as core
+FROM ghcr.io/streamingfast/firehose-core:b248423 as core
 
 FROM ubuntu:20.04
 
diff --git a/cmd/firesol/rpc/fetcher.go b/cmd/firesol/rpc/fetcher.go
index b7d0504a..54818377 100644
--- a/cmd/firesol/rpc/fetcher.go
+++ b/cmd/firesol/rpc/fetcher.go
@@ -1,15 +1,12 @@
 package rpc
 
 import (
-	"errors"
 	"fmt"
 	"strconv"
 	"time"
 
 	"github.com/gagliardetto/solana-go/rpc"
-	"github.com/gagliardetto/solana-go/rpc/jsonrpc"
 	"github.com/spf13/cobra"
-	"github.com/streamingfast/bstream"
 	"github.com/streamingfast/cli/sflags"
 	firecore "github.com/streamingfast/firehose-core"
 	"github.com/streamingfast/firehose-core/blockpoller"
@@ -74,23 +71,7 @@ func fetchRunE(logger *zap.Logger, tracer logging.Tracer) firecore.CommandExecut
 
 		logger.Info("Found latest slot", zap.Uint64("slot_number", latestSlot))
 
-		var requestedBlock *rpc.GetBlockResult
-		for {
-			requestedBlock, err = rpcClient.GetBlockWithOpts(ctx, latestSlot, fetcher.GetBlockOpts)
-			if err != nil {
-				var rpcErr *jsonrpc.RPCError
-				if errors.As(err, &rpcErr) {
-					if rpcErr.Code == -32004 {
-						time.Sleep(latestBlockRetryInterval)
-						continue
-					}
-				}
-				return fmt.Errorf("getting requested block %d: %w", latestSlot, err)
-			}
-			break
-		}
-
-		err = poller.Run(ctx, startBlock, bstream.NewBlockRef(requestedBlock.Blockhash.String(), latestSlot), sflags.MustGetInt(cmd, "block-fetch-batch-size"))
+		err = poller.Run(ctx, startBlock, sflags.MustGetInt(cmd, "block-fetch-batch-size"))
 		if err != nil {
 			return fmt.Errorf("running poller: %w", err)
 		}
diff --git a/go.mod b/go.mod
index a85dcd2b..ba40090e 100644
--- a/go.mod
+++ b/go.mod
@@ -18,8 +18,9 @@ require (
 	github.com/streamingfast/binary v0.0.0-20240116152459-ebe30de95370
 	github.com/streamingfast/bstream v0.0.2-0.20240118123300-2bc69dde3598
 	github.com/streamingfast/cli v0.0.4-0.20230825151644-8cc84512cd80
+	github.com/streamingfast/derr v0.0.0-20230515163924-8570aaa43fe1
 	github.com/streamingfast/dstore v0.1.1-0.20230620124109-3924b3b36c77
-	github.com/streamingfast/firehose-core v1.0.1-0.20240131133941-a4ba225c6f6b
+	github.com/streamingfast/firehose-core v1.0.1-0.20240206200209-b248423346ea
 	github.com/streamingfast/logging v0.0.0-20230608130331-f22c91403091
 	github.com/streamingfast/solana-go v0.5.1-0.20230622180848-8faf68a7cb1d
 	github.com/test-go/testify v1.1.4
@@ -154,7 +155,6 @@ require (
 	github.com/spf13/viper v1.15.0 // indirect
 	github.com/streamingfast/dauth v0.0.0-20231120142446-843f4e045cc2 // indirect
 	github.com/streamingfast/dbin v0.9.1-0.20231117225723-59790c798e2c // indirect
-	github.com/streamingfast/derr v0.0.0-20230515163924-8570aaa43fe1 // indirect
 	github.com/streamingfast/dgrpc v0.0.0-20240119162453-69517bcc1a7f // indirect
 	github.com/streamingfast/dhammer v0.0.0-20230125192823-c34bbd561bd4 // indirect
 	github.com/streamingfast/dmetering v0.0.0-20231120142327-a3405f0eed83 // indirect
diff --git a/go.sum b/go.sum
index 996bae50..0adfc246 100644
--- a/go.sum
+++ b/go.sum
@@ -706,8 +706,8 @@ github.com/streamingfast/dstore v0.1.1-0.20230620124109-3924b3b36c77 h1:u7FWLqz3
 github.com/streamingfast/dstore v0.1.1-0.20230620124109-3924b3b36c77/go.mod h1:ngKU7WzHwVjOFpt2g+Wtob5mX4IvN90HYlnARcTRbmQ=
 github.com/streamingfast/dtracing v0.0.0-20220305214756-b5c0e8699839 h1:K6mJPvh1jAL+/gBS7Bh9jyzWaTib6N47m06gZOTUPwQ=
 github.com/streamingfast/dtracing v0.0.0-20220305214756-b5c0e8699839/go.mod h1:huOJyjMYS6K8upTuxDxaNd+emD65RrXoVBvh8f1/7Ns=
-github.com/streamingfast/firehose-core v1.0.1-0.20240131133941-a4ba225c6f6b h1:KauLK86b2y2VmE+snS+EFYXbASOe2nr/f8e7dx1NgqI=
-github.com/streamingfast/firehose-core v1.0.1-0.20240131133941-a4ba225c6f6b/go.mod h1:mwzlzxtjSqJy81zFv1X77+YoKhe59rBZopisrQTmaqo=
+github.com/streamingfast/firehose-core v1.0.1-0.20240206200209-b248423346ea h1:meVzSjdDrnuutYUWu5cikQOF2XVdXEOxHe4bQhiKGuM=
+github.com/streamingfast/firehose-core v1.0.1-0.20240206200209-b248423346ea/go.mod h1:mwzlzxtjSqJy81zFv1X77+YoKhe59rBZopisrQTmaqo=
 github.com/streamingfast/gagliardetto-solana-go v0.0.0-20240115191424-05c37cd0760d h1:Db3yKJeN5DWPz8pesR9tuFXdbs0MnpRLmov+ttsHoTU=
 github.com/streamingfast/gagliardetto-solana-go v0.0.0-20240115191424-05c37cd0760d/go.mod h1:i+7aAyNDTHG0jK8GZIBSI4OVvDqkt2Qx+LklYclRNG8=
 github.com/streamingfast/jsonpb v0.0.0-20210811021341-3670f0aa02d0 h1:g8eEYbFSykyzIyuxNMmHEUGGUvJE0ivmqZagLDK42gw=