diff --git a/go.mod b/go.mod
index 6f1d4b8..afc38d6 100644
--- a/go.mod
+++ b/go.mod
@@ -5,11 +5,11 @@ go 1.22.0
 toolchain go1.23.2
 
 require (
+	github.com/OffchainLabs/go-bitfield v0.0.0-20251031151322-f427d04d8506
 	github.com/attestantio/go-eth2-client v0.27.1
 	github.com/mitchellh/go-homedir v1.1.0
 	github.com/pkg/errors v0.9.1
 	github.com/prometheus/client_golang v1.20.5
-	github.com/prysmaticlabs/go-bitfield v0.0.0-20240618144021-706c95b2dd15
 	github.com/rs/zerolog v1.33.0
 	github.com/spf13/pflag v1.0.6
 	github.com/spf13/viper v1.19.0
@@ -43,6 +43,7 @@ require (
 	github.com/prometheus/client_model v0.6.1 // indirect
 	github.com/prometheus/common v0.62.0 // indirect
 	github.com/prometheus/procfs v0.15.1 // indirect
+	github.com/prysmaticlabs/go-bitfield v0.0.0-20240618144021-706c95b2dd15 // indirect
 	github.com/r3labs/sse/v2 v2.10.0 // indirect
 	github.com/sagikazarmark/locafero v0.7.0 // indirect
 	github.com/sagikazarmark/slog-shim v0.1.0 // indirect
diff --git a/go.sum b/go.sum
index 78cb9c9..a43ea94 100644
--- a/go.sum
+++ b/go.sum
@@ -1,3 +1,5 @@
+github.com/OffchainLabs/go-bitfield v0.0.0-20251031151322-f427d04d8506 h1:d/SJkN8/9Ca+1YmuDiUJxAiV4w/a9S8NcsG7GMQSrVI=
+github.com/OffchainLabs/go-bitfield v0.0.0-20251031151322-f427d04d8506/go.mod h1:6TZI4FU6zT8x6ZfWa1J8YQ2NgW0wLV/W3fHRca8ISBo=
 github.com/attestantio/go-eth2-client v0.27.1 h1:g7bm+gG/p+gfzYdEuxuAepVWYb8EO+2KojV5/Lo2BxM=
 github.com/attestantio/go-eth2-client v0.27.1/go.mod h1:fvULSL9WtNskkOB4i+Yyr6BKpNHXvmpGZj9969fCrfY=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
diff --git a/services/attestations/events/service.go b/services/attestations/events/service.go
index f8de1ba..b6144ef 100644
--- a/services/attestations/events/service.go
+++ b/services/attestations/events/service.go
@@ -20,12 +20,12 @@ import (
 	"sync"
 	"time"
 
+	bitfield "github.com/OffchainLabs/go-bitfield"
 	consensusclient "github.com/attestantio/go-eth2-client"
 	"github.com/attestantio/go-eth2-client/api"
 	"github.com/attestantio/go-eth2-client/spec"
 	"github.com/attestantio/go-eth2-client/spec/phase0"
 	"github.com/pkg/errors"
-	bitfield "github.com/prysmaticlabs/go-bitfield"
 	"github.com/rs/zerolog"
 	zerologger "github.com/rs/zerolog/log"
 	"github.com/wealdtech/probec/services/chaintime"