diff --git a/apis/beacon/blocks/blinded_block.yaml b/apis/beacon/blocks/blinded_block.yaml
index 2282daa4..35e89e7a 100644
--- a/apis/beacon/blocks/blinded_block.yaml
+++ b/apis/beacon/blocks/blinded_block.yaml
@@ -33,7 +33,7 @@ get:
               finalized:
                 $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Finalized"
               data:
-                oneOf:
+                anyOf:
                   - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/SignedBeaconBlock"
                   - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Altair.SignedBeaconBlock"
                   - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Bellatrix.SignedBlindedBeaconBlock"
diff --git a/apis/beacon/blocks/blinded_blocks.v2.yaml b/apis/beacon/blocks/blinded_blocks.v2.yaml
index ac47d2ab..9d48718d 100644
--- a/apis/beacon/blocks/blinded_blocks.v2.yaml
+++ b/apis/beacon/blocks/blinded_blocks.v2.yaml
@@ -49,7 +49,7 @@ post:
     content:
       application/json:
         schema:
-          oneOf:
+          anyOf:
             - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/SignedBeaconBlock'
             - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Altair.SignedBeaconBlock"
             - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Bellatrix.SignedBlindedBeaconBlock"
diff --git a/apis/beacon/blocks/blinded_blocks.yaml b/apis/beacon/blocks/blinded_blocks.yaml
index 53301943..1f545e57 100644
--- a/apis/beacon/blocks/blinded_blocks.yaml
+++ b/apis/beacon/blocks/blinded_blocks.yaml
@@ -27,7 +27,7 @@ post:
     content:
       application/json:
         schema:
-          oneOf:
+          anyOf:
             - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/SignedBeaconBlock'
             - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Altair.SignedBeaconBlock"
             - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Bellatrix.SignedBlindedBeaconBlock"
diff --git a/apis/beacon/blocks/block.v2.yaml b/apis/beacon/blocks/block.v2.yaml
index 050ca729..f1ef818d 100644
--- a/apis/beacon/blocks/block.v2.yaml
+++ b/apis/beacon/blocks/block.v2.yaml
@@ -33,7 +33,7 @@ get:
               finalized:
                 $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Finalized"
               data:
-                oneOf:
+                anyOf:
                   - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/SignedBeaconBlock"
                   - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Altair.SignedBeaconBlock"
                   - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Bellatrix.SignedBeaconBlock"
diff --git a/apis/beacon/blocks/blocks.v2.yaml b/apis/beacon/blocks/blocks.v2.yaml
index c68b3985..45959301 100644
--- a/apis/beacon/blocks/blocks.v2.yaml
+++ b/apis/beacon/blocks/blocks.v2.yaml
@@ -48,7 +48,7 @@ post:
     content:
       application/json:
         schema:
-          oneOf:
+          anyOf:
             - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/SignedBeaconBlock'
             - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Altair.SignedBeaconBlock"
             - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Bellatrix.SignedBeaconBlock"
diff --git a/apis/beacon/blocks/blocks.yaml b/apis/beacon/blocks/blocks.yaml
index b3f6d7ef..68be1b69 100644
--- a/apis/beacon/blocks/blocks.yaml
+++ b/apis/beacon/blocks/blocks.yaml
@@ -26,7 +26,7 @@ post:
     content:
       application/json:
         schema:
-          oneOf:
+          anyOf:
             - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/SignedBeaconBlock'
             - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Altair.SignedBeaconBlock"
             - $ref: "../../../beacon-node-oapi.yaml#/components/schemas/Bellatrix.SignedBeaconBlock"
diff --git a/apis/beacon/light_client/bootstrap.yaml b/apis/beacon/light_client/bootstrap.yaml
index 34f67a41..89b7f1fd 100644
--- a/apis/beacon/light_client/bootstrap.yaml
+++ b/apis/beacon/light_client/bootstrap.yaml
@@ -29,7 +29,7 @@ get:
               version:
                 $ref: '../../../beacon-node-oapi.yaml#/components/schemas/ConsensusVersion'
               data:
-                oneOf:
+                anyOf:
                   - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/Altair.LightClientBootstrap'
                   - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/Capella.LightClientBootstrap'
         application/octet-stream:
diff --git a/apis/beacon/light_client/finality_update.yaml b/apis/beacon/light_client/finality_update.yaml
index 0480a9ca..c1a395d3 100644
--- a/apis/beacon/light_client/finality_update.yaml
+++ b/apis/beacon/light_client/finality_update.yaml
@@ -24,7 +24,7 @@ get:
               version:
                 $ref: '../../../beacon-node-oapi.yaml#/components/schemas/ConsensusVersion'
               data:
-                oneOf:
+                anyOf:
                   - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/Altair.LightClientFinalityUpdate'
                   - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/Capella.LightClientFinalityUpdate'
         application/octet-stream:
diff --git a/apis/beacon/light_client/optimistic_update.yaml b/apis/beacon/light_client/optimistic_update.yaml
index 5a6e9bc3..dea560e5 100644
--- a/apis/beacon/light_client/optimistic_update.yaml
+++ b/apis/beacon/light_client/optimistic_update.yaml
@@ -24,7 +24,7 @@ get:
               version:
                 $ref: '../../../beacon-node-oapi.yaml#/components/schemas/ConsensusVersion'
               data:
-                oneOf:
+                anyOf:
                   - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/Altair.LightClientOptimisticUpdate'
                   - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/Capella.LightClientOptimisticUpdate'
         application/octet-stream:
diff --git a/apis/beacon/light_client/updates.yaml b/apis/beacon/light_client/updates.yaml
index 6299d0bd..4823d071 100644
--- a/apis/beacon/light_client/updates.yaml
+++ b/apis/beacon/light_client/updates.yaml
@@ -34,7 +34,7 @@ get:
                 version:
                   $ref: '../../../beacon-node-oapi.yaml#/components/schemas/ConsensusVersion'
                 data:
-                  oneOf:
+                  anyOf:
                     - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/Altair.LightClientUpdate'
                     - $ref: '../../../beacon-node-oapi.yaml#/components/schemas/Capella.LightClientUpdate'
         application/octet-stream:
diff --git a/apis/debug/state.v2.yaml b/apis/debug/state.v2.yaml
index d475459a..d58ed771 100644
--- a/apis/debug/state.v2.yaml
+++ b/apis/debug/state.v2.yaml
@@ -33,7 +33,7 @@ get:
               finalized:
                 $ref: "../../beacon-node-oapi.yaml#/components/schemas/Finalized"
               data:
-                oneOf:
+                anyOf:
                  - $ref: '../../beacon-node-oapi.yaml#/components/schemas/BeaconState'
                  - $ref: "../../beacon-node-oapi.yaml#/components/schemas/Altair.BeaconState"
                  - $ref: "../../beacon-node-oapi.yaml#/components/schemas/Bellatrix.BeaconState"
diff --git a/apis/validator/blinded_block.yaml b/apis/validator/blinded_block.yaml
index 009c2557..be7d60c2 100644
--- a/apis/validator/blinded_block.yaml
+++ b/apis/validator/blinded_block.yaml
@@ -59,7 +59,7 @@ get:
                 enum: [ phase0, altair, bellatrix, capella, deneb ]
                 example: "bellatrix"
               data:
-                oneOf:
+                anyOf:
                   - $ref: '../../beacon-node-oapi.yaml#/components/schemas/BeaconBlock'
                   - $ref: "../../beacon-node-oapi.yaml#/components/schemas/Altair.BeaconBlock"
                   - $ref: "../../beacon-node-oapi.yaml#/components/schemas/Bellatrix.BlindedBeaconBlock"
diff --git a/apis/validator/block.v2.yaml b/apis/validator/block.v2.yaml
index 3e1fe104..f436294d 100644
--- a/apis/validator/block.v2.yaml
+++ b/apis/validator/block.v2.yaml
@@ -56,7 +56,7 @@ get:
                 enum: [ phase0, altair, bellatrix, capella, deneb ]
                 example: "phase0"
               data:
-                oneOf:
+                anyOf:
                  - $ref: '../../beacon-node-oapi.yaml#/components/schemas/BeaconBlock'
                  - $ref: "../../beacon-node-oapi.yaml#/components/schemas/Altair.BeaconBlock"
                  - $ref: "../../beacon-node-oapi.yaml#/components/schemas/Bellatrix.BeaconBlock"
diff --git a/apis/validator/block.v3.yaml b/apis/validator/block.v3.yaml
index c99bb40e..7932ac57 100644
--- a/apis/validator/block.v3.yaml
+++ b/apis/validator/block.v3.yaml
@@ -109,7 +109,7 @@ get:
                 type: string
                 example: "12345"
               data:
-                oneOf:
+                anyOf:
                  - $ref: "../../beacon-node-oapi.yaml#/components/schemas/BeaconBlock"
                  - $ref: "../../beacon-node-oapi.yaml#/components/schemas/Altair.BeaconBlock"
                  - $ref: "../../beacon-node-oapi.yaml#/components/schemas/Bellatrix.BeaconBlock"