diff --git a/apis/beacon/pool/attestations.v2.yaml b/apis/beacon/pool/attestations.v2.yaml
index abbe7b17..2b816253 100644
--- a/apis/beacon/pool/attestations.v2.yaml
+++ b/apis/beacon/pool/attestations.v2.yaml
@@ -76,9 +76,13 @@ post:
     content:
       application/json:
         schema:
-          - type: array
-            items:
-              $ref: '../../../beacon-node-oapi.yaml#/components/schemas/SingleAttestation'
+          anyOf:
+            - type: array
+              items:
+                $ref: '../../../beacon-node-oapi.yaml#/components/schemas/Attestation'
+            - type: array
+              items:
+                $ref: '../../../beacon-node-oapi.yaml#/components/schemas/Electra.SingleAttestation'
   responses:
     "200":
       description: Attestations are stored in pool and broadcast on the appropriate subnet
diff --git a/beacon-node-oapi.yaml b/beacon-node-oapi.yaml
index dee64c78..f0d81ce4 100644
--- a/beacon-node-oapi.yaml
+++ b/beacon-node-oapi.yaml
@@ -259,8 +259,6 @@ components:
       $ref: './types/validator.yaml#/Altair/SyncDuty'
     SignedAggregateAndProof:
       $ref: './types/validator.yaml#/SignedAggregateAndProof'
-    SingleAttestation:
-      $ref: './types/attestation.yaml#/SingleAttestation'
     Attestation:
       $ref: './types/attestation.yaml#/Attestation'
     AttestationData:
@@ -399,6 +397,8 @@ components:
       $ref: './types/deneb/blob_sidecar.yaml#/Deneb/BlobSidecars'
     Electra.Attestation:
       $ref: './types/electra/attestation.yaml#/Electra/Attestation'
+    Electra.SingleAttestation:
+      $ref: './types/electra/attestation.yaml#/Electra/SingleAttestation'
     Electra.AttesterSlashing:
       $ref: './types/electra/attester_slashing.yaml#/Electra/AttesterSlashing'
     Electra.SignedAggregateAndProof:
diff --git a/types/attestation.yaml b/types/attestation.yaml
index 2fd46bbb..50711193 100644
--- a/types/attestation.yaml
+++ b/types/attestation.yaml
@@ -14,24 +14,6 @@ IndexedAttestation:
     signature:
       $ref: './primitive.yaml#/Signature'
       description: "The BLS signature of the `IndexedAttestation`, created by the validator of the attestation."
-
-SingleAttestation:
-  type: object
-  description: "The [`SingleAttestation`](https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/electra/beacon-chain.md#singleattestation) object from the CL spec."
-  required: [committee_index, attester_index, data, signature]
-  properties:
-    committee_index:
-      $ref: "./primitive.yaml#/Uint64"
-      description: "The attestations committee index."
-    attester_index:
-      $ref: "./primitive.yaml#/Uint64"
-      description: "The validator index that signed this attestation."
-    data:
-      $ref: './attestation_data.yaml#/AttestationData'
-    signature:
-      $ref: './primitive.yaml#/Signature'
-      description: "BLS aggregate signature."
-
 Attestation:
   type: object
   description: "The [`Attestation`](https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/phase0/beacon-chain.md#attestation) object from the CL spec."
diff --git a/types/electra/attestation.yaml b/types/electra/attestation.yaml
index 60cd3bbb..f7294436 100644
--- a/types/electra/attestation.yaml
+++ b/types/electra/attestation.yaml
@@ -15,7 +15,22 @@ Electra:
       signature:
         $ref: '../primitive.yaml#/Signature'
         description: "The BLS signature of the `IndexedAttestation`, created by the validator of the attestation."
-
+  SingleAttestation:
+    type: object
+    description: "The [`SingleAttestation`](https://github.com/ethereum/consensus-specs/blob/v1.3.0/specs/electra/beacon-chain.md#singleattestation) object from the CL spec."
+    required: [committee_index, attester_index, data, signature]
+    properties:
+      committee_index:
+        $ref: "./primitive.yaml#/Uint64"
+        description: "The attestations committee index."
+      attester_index:
+        $ref: "./primitive.yaml#/Uint64"
+        description: "The validator index that signed this attestation."
+      data:
+        $ref: './attestation_data.yaml#/AttestationData'
+      signature:
+        $ref: './primitive.yaml#/Signature'
+        description: "BLS aggregate signature."
   Attestation:
     type: object
     description: "The [`Attestation`](https://github.com/ethereum/consensus-specs/blob/v1.5.0-alpha.3/specs/electra/beacon-chain.md#attestation) object from the CL spec."