diff --git a/test-requirements.txt b/test-requirements.txt
index 012697ec..3cbcd696 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -46,6 +46,6 @@ sqlalchemy==1.4.26
 pylint-protobuf
 cython
 freezegun==1.2.2
-pytest-cov
+# pytest-cov
 yandexcloud
 -e .
diff --git a/ydb/types.py b/ydb/types.py
index 2d4eecc3..887008c4 100644
--- a/ydb/types.py
+++ b/ydb/types.py
@@ -33,8 +33,10 @@ def _from_date(x: ydb_value_pb2.Value, table_client_settings: table.TableClientS
     return x.uint32_value
 
 
-def _to_date(pb: ydb_value_pb2.Value, value: typing.Union[date, int]) -> None:
-    if isinstance(value, date):
+def _to_date(pb: ydb_value_pb2.Value, value: typing.Union[date, datetime, int]) -> None:
+    if isinstance(value, datetime):
+        pb.uint32_value = (value.date() - _EPOCH.date()).days
+    elif isinstance(value, date):
         pb.uint32_value = (value - _EPOCH.date()).days
     else:
         pb.uint32_value = value