diff --git a/packages/beacon-node/test/spec/specTestVersioning.ts b/packages/beacon-node/test/spec/specTestVersioning.ts
index 06973ffb9c1..34e6ae0d906 100644
--- a/packages/beacon-node/test/spec/specTestVersioning.ts
+++ b/packages/beacon-node/test/spec/specTestVersioning.ts
@@ -15,7 +15,7 @@ import {DownloadTestsOptions} from "@lodestar/spec-test-util";
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 
 export const ethereumConsensusSpecsTests: DownloadTestsOptions = {
-  specVersion: "v1.4.0-alpha.1",
+  specVersion: "v1.4.0-alpha.2",
   // Target directory is the host package root: 'packages/*/spec-tests'
   outputDir: path.join(__dirname, "../../spec-tests"),
   specTestsRepoUrl: "https://github.com/ethereum/consensus-spec-tests",
diff --git a/packages/params/src/presets/mainnet.ts b/packages/params/src/presets/mainnet.ts
index c6c6a9413d5..f29b1668ac4 100644
--- a/packages/params/src/presets/mainnet.ts
+++ b/packages/params/src/presets/mainnet.ts
@@ -114,5 +114,5 @@ export const mainnetPreset: BeaconPreset = {
   // https://github.com/ethereum/consensus-specs/blob/dev/presets/mainnet/eip4844.yaml
   FIELD_ELEMENTS_PER_BLOB: 4096,
   MAX_BLOB_COMMITMENTS_PER_BLOCK: 4096,
-  MAX_BLOBS_PER_BLOCK: 4,
+  MAX_BLOBS_PER_BLOCK: 6,
 };
diff --git a/packages/params/src/presets/minimal.ts b/packages/params/src/presets/minimal.ts
index 2c0878d95eb..34d69004511 100644
--- a/packages/params/src/presets/minimal.ts
+++ b/packages/params/src/presets/minimal.ts
@@ -121,5 +121,5 @@ export const minimalPreset: BeaconPreset = {
   // https://github.com/ethereum/consensus-specs/blob/dev/presets/minimal/eip4844.yaml
   FIELD_ELEMENTS_PER_BLOB: 4,
   MAX_BLOB_COMMITMENTS_PER_BLOCK: 16,
-  MAX_BLOBS_PER_BLOCK: 4,
+  MAX_BLOBS_PER_BLOCK: 6,
 };
diff --git a/packages/params/test/e2e/ensure-config-is-synced.test.ts b/packages/params/test/e2e/ensure-config-is-synced.test.ts
index d8af9acfb17..c1108f2862e 100644
--- a/packages/params/test/e2e/ensure-config-is-synced.test.ts
+++ b/packages/params/test/e2e/ensure-config-is-synced.test.ts
@@ -8,7 +8,7 @@ import {loadConfigYaml} from "../yaml.js";
 // Not e2e, but slow. Run with e2e tests
 
 /** https://github.com/ethereum/consensus-specs/releases */
-const specConfigCommit = "v1.4.0-alpha.1";
+const specConfigCommit = "v1.4.0-alpha.2";
 
 describe("Ensure config is synced", function () {
   this.timeout(60 * 1000);