diff --git a/packages/beacon-node/src/api/rest/index.ts b/packages/beacon-node/src/api/rest/index.ts
index 47488a2e3d9a..679426a35a1b 100644
--- a/packages/beacon-node/src/api/rest/index.ts
+++ b/packages/beacon-node/src/api/rest/index.ts
@@ -21,7 +21,7 @@ export const beaconRestApiServerOpts: BeaconRestApiServerOpts = {
   port: 9596,
   cors: "*",
   // beacon -> validator API is trusted, and for large amounts of keys the payload is multi-MB
-  bodyLimit: 10 * 1024 * 1024, // 10MB
+  bodyLimit: 100 * 1024 * 1024, // 100MB for block + blobs
 };
 
 export type BeaconRestApiServerModules = RestApiServerModules & {