diff --git a/CHANGES.md b/CHANGES.md
index ef630c40..8919ce26 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -30,6 +30,7 @@ The Following are no longer in the Standard API, removed since the latest versio
 | [#286](https://github.com/ethereum/beacon-APIs/pull/286) NEW `/eth/v1/beacon/blob_sidecars/{block_id}`                                              |                                                  |                                                   |                                                    |                                                 |                                           |
 | [#319](https://github.com/ethereum/beacon-APIs/pull/319) `/eth/v1/debug/beacon/heads` removed deprecated endpoint                           |                                                  |                                                   |                                                    |                                                 |                                           |
 | [#302](https://github.com/ethereum/beacon-APIs/pull/302) Added `BlockContents` structures for `deneb` blocks and blob_sidecars              |                                                  |                                                   |                                                    |                                                 |                                           |
+| [#327](https://github.com/ethereum/beacon-APIs/pull/327) Increased maximum number of blobs from 4 to 6                        |                                                  |                                                   |                                                    |                                                 |                                           |
 
 
 ## Version 2.4.0
diff --git a/types/deneb/blob_sidecar.yaml b/types/deneb/blob_sidecar.yaml
index 5bb43ff3..4f287b75 100644
--- a/types/deneb/blob_sidecar.yaml
+++ b/types/deneb/blob_sidecar.yaml
@@ -4,7 +4,7 @@ Deneb:
     items:
       $ref: '#/Deneb/BlobSidecar'
     minItems: 0
-    maxItems: 4
+    maxItems: 6
 
   BlobSidecar:
     type: object
@@ -32,7 +32,7 @@ Deneb:
     items:
       $ref: '#/Deneb/SignedBlobSidecar'
     minItems: 0
-    maxItems: 4
+    maxItems: 6
 
   SignedBlobSidecar:
     type: object
@@ -48,7 +48,7 @@ Deneb:
     items:
       $ref: '#/Deneb/BlindedBlobSidecar'
     minItems: 0
-    maxItems: 4
+    maxItems: 6
 
   BlindedBlobSidecar:
     type: object
@@ -76,7 +76,7 @@ Deneb:
     items:
       $ref: '#/Deneb/SignedBlindedBlobSidecar'
     minItems: 0
-    maxItems: 4
+    maxItems: 6
 
   SignedBlindedBlobSidecar:
     type: object