diff --git a/go.mod b/go.mod
index 6fdc40a..93f9ff7 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/attestantio/go-builder-client
 go 1.20
 
 require (
-	github.com/attestantio/go-eth2-client v0.21.4-0.20240506195511-4654a8b8bc37
+	github.com/attestantio/go-eth2-client v0.21.4-0.20240508201227-6fd8b5ef4447
 	github.com/ferranbt/fastssz v0.1.3
 	// go-yaml after 1.9.2 has memory issues due to https://github.com/goccy/go-yaml/issues/325; avoid.
 	github.com/goccy/go-yaml v1.9.2
diff --git a/go.sum b/go.sum
index 7adbf4d..0e9ffeb 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/attestantio/go-eth2-client v0.21.4-0.20240506195511-4654a8b8bc37 h1:o6Ds0sAleeYlBs4NjmPI17QhbmbaaDH1sY7a7hDpVrs=
-github.com/attestantio/go-eth2-client v0.21.4-0.20240506195511-4654a8b8bc37/go.mod h1:yzMl6JKut8ngKCRyv+6H9j2nNjS/+SMm3N+duf8iix8=
+github.com/attestantio/go-eth2-client v0.21.4-0.20240508201227-6fd8b5ef4447 h1:k0SJ1kAoijCKsRLG+D8kzicwAwpkCWsa/9KRQS5EjFg=
+github.com/attestantio/go-eth2-client v0.21.4-0.20240508201227-6fd8b5ef4447/go.mod h1:yzMl6JKut8ngKCRyv+6H9j2nNjS/+SMm3N+duf8iix8=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=