diff --git a/crates/eips/src/eip7742.rs b/crates/eips/src/eip7742.rs
index 5ea6b1405e1..269515c6a77 100644
--- a/crates/eips/src/eip7742.rs
+++ b/crates/eips/src/eip7742.rs
@@ -20,7 +20,6 @@ pub const BLOB_BASE_FEE_UPDATE_FRACTION_NORMALIZED: u128 =
 pub const fn calc_excess_blob_gas_at_transition(
     parent_excess_blob_gas: u64,
     parent_blob_gas_used: u64,
-    parent_target_blobs_per_block: u64,
 ) -> u64 {
     let normalized_parent_excess_blob_gas = parent_excess_blob_gas
         * EXCESS_BLOB_GAS_NORMALIZATION_TARGET
@@ -29,7 +28,7 @@ pub const fn calc_excess_blob_gas_at_transition(
     calc_excess_blob_gas(
         normalized_parent_excess_blob_gas,
         parent_blob_gas_used,
-        parent_target_blobs_per_block,
+        eip4844::TARGET_BLOBS_PER_BLOCK,
     )
 }
 
diff --git a/crates/rpc-types-beacon/Cargo.toml b/crates/rpc-types-beacon/Cargo.toml
index e4219e81dda..e89e2668e09 100644
--- a/crates/rpc-types-beacon/Cargo.toml
+++ b/crates/rpc-types-beacon/Cargo.toml
@@ -22,6 +22,7 @@ workspace = true
 alloy-eips = { workspace = true, features = ["serde"] }
 alloy-rpc-types-engine = { workspace = true, features = ["serde"] }
 alloy-primitives.workspace = true
+alloy-serde.workspace = true
 
 # ssz
 ethereum_ssz_derive = { workspace = true, optional = true }
diff --git a/crates/rpc-types-beacon/src/relay.rs b/crates/rpc-types-beacon/src/relay.rs
index 7275c83f32e..2940256c47e 100644
--- a/crates/rpc-types-beacon/src/relay.rs
+++ b/crates/rpc-types-beacon/src/relay.rs
@@ -159,6 +159,9 @@ pub struct SignedBidSubmissionV4 {
     pub blobs_bundle: BlobsBundleV1,
     /// The Pectra execution requests for this bid.
     pub execution_requests: Vec<Bytes>,
+    /// The EIP-7742 blobs per block for this bid.
+    #[serde(with = "alloy_serde::quantity")]
+    pub target_blobs_per_block: u64,
     /// The signature associated with the submission.
     pub signature: BlsSignature,
 }