diff --git a/src/edition.py b/src/edition.py
index 7ae86b3..2a250c5 100644
--- a/src/edition.py
+++ b/src/edition.py
@@ -1,7 +1,7 @@
-from enum import Enum
+from enum import StrEnum
 
 
-class Edition(str, Enum):
+class Edition(StrEnum):
     n = "N"
     e = "E"
     a = "A"