diff --git a/go.mod b/go.mod
index bcd55c05..6dda44f2 100644
--- a/go.mod
+++ b/go.mod
@@ -96,6 +96,7 @@ require (
 	github.com/prometheus/common v0.37.0 // indirect
 	github.com/prometheus/procfs v0.8.0 // indirect
 	github.com/shibukawa/configdir v0.0.0-20170330084843-e180dbdc8da0 // indirect
+	github.com/shopspring/decimal v1.3.1 // indirect
 	github.com/spf13/afero v1.9.3 // indirect
 	github.com/spf13/cast v1.5.0 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
diff --git a/go.sum b/go.sum
index bf9e8072..3bceb575 100644
--- a/go.sum
+++ b/go.sum
@@ -435,6 +435,8 @@ github.com/sasha-s/go-deadlock v0.3.1 h1:sqv7fDNShgjcaxkO0JNcOAlr8B9+cV5Ey/OB71e
 github.com/sasha-s/go-deadlock v0.3.1/go.mod h1:F73l+cr82YSh10GxyRI6qZiCgK64VaZjwesgfQ1/iLM=
 github.com/shibukawa/configdir v0.0.0-20170330084843-e180dbdc8da0 h1:Xuk8ma/ibJ1fOy4Ee11vHhUFHQNpHhrBneOCNHVXS5w=
 github.com/shibukawa/configdir v0.0.0-20170330084843-e180dbdc8da0/go.mod h1:7AwjWCpdPhkSmNAgUv5C7EJ4AbmjEB3r047r3DXWu3Y=
+github.com/shopspring/decimal v1.3.1 h1:2Usl1nmF/WZucqkFZhnfFYxxxu8LG21F6nPQBE5gKV8=
+github.com/shopspring/decimal v1.3.1/go.mod h1:DKyhrW/HYNuLGql+MJL6WCR6knT2jwCFRcu2hWCYk4o=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
diff --git a/services/blockrelay/standard/auctionblock.go b/services/blockrelay/standard/auctionblock.go
index ea0684e2..e9560e82 100644
--- a/services/blockrelay/standard/auctionblock.go
+++ b/services/blockrelay/standard/auctionblock.go
@@ -292,6 +292,7 @@ func (s *Service) builderBid(ctx context.Context,
 		attribute.String("value", builderBid.Data.Message.Value.ToBig().String()),
 	)
 
+	var score *big.Int
 	switch builderBid.Version {
 	case consensusspec.DataVersionBellatrix:
 		if builderBid.Data == nil {
@@ -336,38 +337,39 @@ func (s *Service) builderBid(ctx context.Context,
 			errCh <- fmt.Errorf("%s: invalid signature", provider.Address())
 			return
 		}
+		score = builderBid.Data.Message.Value.ToBig()
 	case consensusspec.DataVersionCapella:
-		if builderBid.Data == nil {
+		if builderBid.Capella == nil {
 			span.SetStatus(codes.Error, "data missing")
 			errCh <- fmt.Errorf("%s: data missing", provider.Address())
 			return
 		}
-		if builderBid.Data.Message == nil {
+		if builderBid.Capella.Message == nil {
 			span.SetStatus(codes.Error, "data message missing")
 			errCh <- fmt.Errorf("%s: data message missing", provider.Address())
 			return
 		}
-		if builderBid.Data.Message.Header == nil {
+		if builderBid.Capella.Message.Header == nil {
 			span.SetStatus(codes.Error, "data message header missing")
 			errCh <- fmt.Errorf("%s: data message header missing", provider.Address())
 			return
 		}
-		if bytes.Equal(builderBid.Data.Message.Header.FeeRecipient[:], zeroExecutionAddress[:]) {
+		if bytes.Equal(builderBid.Capella.Message.Header.FeeRecipient[:], zeroExecutionAddress[:]) {
 			span.SetStatus(codes.Error, "zero fee recipient")
 			errCh <- fmt.Errorf("%s: zero fee recipient", provider.Address())
 			return
 		}
-		if zeroValue.Cmp(builderBid.Data.Message.Value) == 0 {
+		if zeroValue.Cmp(builderBid.Capella.Message.Value) == 0 {
 			span.SetStatus(codes.Error, "zero value")
 			errCh <- fmt.Errorf("%s: zero value", provider.Address())
 			return
 		}
-		if uint64(s.chainTime.StartOfSlot(slot).Unix()) != builderBid.Data.Message.Header.Timestamp {
+		if uint64(s.chainTime.StartOfSlot(slot).Unix()) != builderBid.Capella.Message.Header.Timestamp {
 			span.SetStatus(codes.Error, "incorrect timestamp")
-			errCh <- fmt.Errorf("%s: provided timestamp %d for slot %d not expected value of %d", provider.Address(), builderBid.Data.Message.Header.Timestamp, slot, s.chainTime.StartOfSlot(slot).Unix())
+			errCh <- fmt.Errorf("%s: provided timestamp %d for slot %d not expected value of %d", provider.Address(), builderBid.Capella.Message.Header.Timestamp, slot, s.chainTime.StartOfSlot(slot).Unix())
 			return
 		}
-		verified, err := s.verifyBidSignature(ctx, builderBid, provider)
+		verified, err := s.verifyBidSignature(ctx, relayConfig, builderBid, provider)
 		if err != nil {
 			span.SetStatus(codes.Error, "invalid bid signature")
 			errCh <- errors.Wrap(err, "error verifying bid signature")
@@ -379,15 +381,17 @@ func (s *Service) builderBid(ctx context.Context,
 			errCh <- fmt.Errorf("%s: invalid signature", provider.Address())
 			return
 		}
+		score = builderBid.Capella.Message.Value.ToBig()
 	default:
 		span.SetStatus(codes.Error, "unhandled builder bid data version")
 		errCh <- fmt.Errorf("%s: unhandled builder bid data version %v", provider.Address(), builderBid.Version)
+		return
 	}
 
 	respCh <- &builderBidResponse{
 		bid:      builderBid,
 		provider: provider,
-		score:    builderBid.Data.Message.Value.ToBig(),
+		score:    score,
 	}
 }