diff --git a/hatch.toml b/hatch.toml
index d5293a1d7f..60bd0af014 100644
--- a/hatch.toml
+++ b/hatch.toml
@@ -43,7 +43,7 @@ features = ["test"]
 test = "pytest -v --durations=5 --maxfail=10 {args}"
 test-eg = "bash ./.evergreen/run-tests.sh {args}"
 test-async = "pytest -v --durations=5 --maxfail=10 -m default_async {args}"
-test-mockupdb = ["pip install -U git+https://github.com/ajdavis/mongo-mockup-db@master", "test -m mockupdb"]
+test-mockupdb = ["pip install -U git+https://github.com/mongodb-labs/mongo-mockup-db@master", "test -m mockupdb"]
 
 [envs.encryption]
 skip-install = true
diff --git a/test/mockupdb/test_handshake.py b/test/mockupdb/test_handshake.py
index 19e10f9617..8193714a86 100644
--- a/test/mockupdb/test_handshake.py
+++ b/test/mockupdb/test_handshake.py
@@ -26,7 +26,7 @@
 
 
 from bson.objectid import ObjectId
-from pymongo import MongoClient
+from pymongo import MongoClient, has_c
 from pymongo import version as pymongo_version
 from pymongo.errors import OperationFailure
 from pymongo.server_api import ServerApi, ServerApiVersion
@@ -39,7 +39,11 @@ def _check_handshake_data(request):
     data = request["client"]
 
     assert data["application"] == {"name": "my app"}
-    assert data["driver"] == {"name": "PyMongo", "version": pymongo_version}
+    if has_c():
+        name = "PyMongo|c"
+    else:
+        name = "PyMongo"
+    assert data["driver"] == {"name": name, "version": pymongo_version}
 
     # Keep it simple, just check these fields exist.
     assert "os" in data