diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 0000000..869a4c0
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,2 @@
+# Default reviewers for all changes.
+* @MurineShiftWork/msw-maintainers
diff --git a/src/ttl_barcoder/core/config.py b/src/ttl_barcoder/core/config.py
index 24c8c5d..0841787 100644
--- a/src/ttl_barcoder/core/config.py
+++ b/src/ttl_barcoder/core/config.py
@@ -1,19 +1,19 @@
 from __future__ import annotations
 
-from enum import Enum
+from enum import StrEnum
 from typing import Any
 
 from pydantic import BaseModel, ConfigDict, Field
 
 
-class TTLType(str, Enum):
+class TTLType(StrEnum):
     """Type of barcode value to generate."""
 
     timestamp = "timestamp"
     random = "random"
 
 
-class TimestampPrecision(str, Enum):
+class TimestampPrecision(StrEnum):
     """Timestamp quantization precision."""
 
     seconds = "s"