diff --git a/pyathena/common.py b/pyathena/common.py
index ccb5024e..ea2b34ea 100644
--- a/pyathena/common.py
+++ b/pyathena/common.py
@@ -255,7 +255,8 @@ def _find_previous_query_id(
                         and e["StatementType"]
                         == AthenaQueryExecution.STATEMENT_TYPE_DML
                     ),
-                    key=lambda e: e["Status"]["CompletionDateTime"],
+                    # https://github.com/python/mypy/issues/9656
+                    key=lambda e: e["Status"]["CompletionDateTime"],  # type: ignore
                     reverse=True,
                 ):
                     if (