diff --git a/conservancy_beancount/tools/sort_entries.py b/conservancy_beancount/tools/sort_entries.py
index e50d3fd0f1cd5cd3463ae3058233e5803e37e296..9d22334bd002667c59d356667c9e5760172e9e00 100644
--- a/conservancy_beancount/tools/sort_entries.py
+++ b/conservancy_beancount/tools/sort_entries.py
@@ -22,7 +22,6 @@ from beancount import loader as bc_loader
 from beancount.parser import printer as bc_printer
 
 from typing import (
-    Hashable,
     Optional,
     Sequence,
     TextIO,
@@ -31,6 +30,7 @@ from ..beancount_types import (
     Directive,
     Entries,
     Errors,
+    Sortable,
 )
 
 from .. import cliutil
@@ -56,7 +56,7 @@ def parse_arguments(arglist: Optional[Sequence[str]]=None) -> argparse.Namespace
 """)
     return parser.parse_args(arglist)
 
-def entry_sorter(entry: Directive) -> Hashable:
+def entry_sorter(entry: Directive) -> Sortable:
     type_name = type(entry).__name__
     if type_name == 'Transaction':
         return (entry.date, type_name, entry.narration, entry.payee or '')  # type:ignore[attr-defined]