diff --git a/nur/manifest.py b/nur/manifest.py
index 45ffc03f0..60a0aee01 100644
--- a/nur/manifest.py
+++ b/nur/manifest.py
@@ -1,7 +1,7 @@
 import json
 from enum import Enum, auto
 from pathlib import Path
-from typing import Dict, List, Optional, Union, Any
+from typing import Dict, List, Optional, Any
 from urllib.parse import ParseResult, urlparse
 
 from .fileutils import PathType, to_path
@@ -110,7 +110,7 @@ def load_locked_versions(path: Path) -> Dict[str, LockedVersion]:
     if path.exists():
         return _load_locked_versions(path)
     else:
-        return dict(repos={})
+        return {}
 
 
 def load_manifest(manifest_path: PathType, lock_path: PathType) -> Manifest:
diff --git a/nur/update.py b/nur/update.py
index 81c1d12cd..773018248 100644
--- a/nur/update.py
+++ b/nur/update.py
@@ -74,7 +74,7 @@ def update_lock_file(repos: List[Repo]) -> None:
         if repo.locked_version:
             locked_repos[repo.name] = repo.locked_version.as_json()
 
-    write_json_file(locked_repos, LOCK_PATH)
+    write_json_file(dict(repos=locked_repos), LOCK_PATH)
 
 
 def update_command(args: Namespace) -> None: