diff --git a/CHANGES.md b/CHANGES.md
index f64e32c..bfcaea5 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,7 @@
 
 
 ## Unreleased
+- MongoDB: Updated to pymongo 4.9
 
 ## 2024/09/26 v0.0.26
 - MongoDB: Configure `MongoDBCrateDBConverter` after updating to commons-codec 0.0.18
diff --git a/cratedb_toolkit/io/mongodb/adapter.py b/cratedb_toolkit/io/mongodb/adapter.py
index b9deb5c..fd7b4b0 100644
--- a/cratedb_toolkit/io/mongodb/adapter.py
+++ b/cratedb_toolkit/io/mongodb/adapter.py
@@ -11,6 +11,7 @@
 import boltons.urlutils
 import bson
 import pymongo
+import pymongo.collection
 import yarl
 from attrs import define, field
 from boltons.urlutils import URL
diff --git a/pyproject.toml b/pyproject.toml
index 427e37e..54eedf3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -170,7 +170,7 @@ mongodb = [
   "commons-codec[mongodb,zyp]>=0.0.19",
   "cratedb-toolkit[io]",
   "orjson<4,>=3.3.1",
-  "pymongo<4.9,>=3.10.1",
+  "pymongo<4.10,>=3.10.1",
   "python-bsonjs<0.6",
   "rich<14,>=3.3.2",
   "undatum<1.1",