diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 179761d64..2a44495c8 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -28,7 +28,7 @@ repos:
     hooks:
       - id: isort
   - repo: https://github.com/asottile/pyupgrade
-    rev: v2.26.0
+    rev: v2.28.0
     hooks:
       - id: pyupgrade
         args: [--py39-plus]
diff --git a/supervisor/utils/json.py b/supervisor/utils/json.py
index 789fdd112..9dfdffba5 100644
--- a/supervisor/utils/json.py
+++ b/supervisor/utils/json.py
@@ -27,7 +27,7 @@ class JSONEncoder(json.JSONEncoder):
         if isinstance(o, Path):
             return o.as_posix()
 
-        return json.JSONEncoder.default(self, o)
+        return super().default(o)
 
 
 def write_json_file(jsonfile: Path, data: Any) -> None: