diff --git a/CHANGES.md b/CHANGES.md
index 2cad8c2..0d4d135 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -4,6 +4,7 @@
 ## Unreleased
 - MongoDB: Rename columns with leading underscores to use double leading underscores
 - MongoDB: Add support for UUID types
+- MongoDB: Improve reading timestamps in previous BSON formats
 
 ## 2024/09/02 v0.0.21
 - DynamoDB: Add special decoding for varied lists.
diff --git a/cratedb_toolkit/io/mongodb/core.py b/cratedb_toolkit/io/mongodb/core.py
index 7e1744e..5a34207 100644
--- a/cratedb_toolkit/io/mongodb/core.py
+++ b/cratedb_toolkit/io/mongodb/core.py
@@ -57,7 +57,7 @@ def gather_collections(database) -> t.List[str]:
 
 def get_mongodb_client_database(args, **kwargs) -> t.Tuple[pymongo.MongoClient, pymongo.database.Database]:
     client: pymongo.MongoClient
-    client = pymongo.MongoClient(args.url, **kwargs)
+    client = pymongo.MongoClient(args.url, datetime_conversion="DATETIME_AUTO", **kwargs)
     db: pymongo.database.Database = client.get_database(args.database)
     return client, db