diff --git a/.github/workflows/renovate.yml b/.github/workflows/renovate.yml
index b119786..68f5ff9 100644
--- a/.github/workflows/renovate.yml
+++ b/.github/workflows/renovate.yml
@@ -35,4 +35,7 @@ jobs:
           RENOVATE_REPOSITORIES: ${{ github.repository }}
           RENOVATE_ONBOARDING: "false"
           RENOVATE_REQUIRE_CONFIG: "required"
+          # The grouped "all" branch holds many upgrades; changelog/PR-body
+          # rendering for it blew the default 4GB V8 heap (exit 134 OOM).
+          NODE_OPTIONS: "--max-old-space-size=8192"
           LOG_LEVEL: ${{ github.event.inputs.logLevel || 'info' }}
diff --git a/renovate.json b/renovate.json
index e1ab9c8..51ef9ca 100644
--- a/renovate.json
+++ b/renovate.json
@@ -1,6 +1,8 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": ["config:recommended"],
+  "gitAuthor": "Renovate Bot <22881669+maxlerebourg@users.noreply.github.com>",
+  "fetchChangeLogs": "off",
   "labels": ["dependencies"],
   "ignorePaths": ["**/vendor/**", "**/node_modules/**"],
   "rangeStrategy": "bump",