diff --git a/source/use-cases/product-catalog.txt b/source/use-cases/product-catalog.txt
index d4d8f5b4bcd..7d56c60a9c8 100644
--- a/source/use-cases/product-catalog.txt
+++ b/source/use-cases/product-catalog.txt
@@ -526,27 +526,26 @@ per-connection or per-operation basis. In :api:`PyMongo
 <pymongo.collection.Collection.read_preference>` argument.
 
 The
-:py:attr:`SECONDARY <pymongo:pymongo.connection.Connection.read_preference>`
+:py:attr:`SECONDARY <pymongo:pymongo.mongo_client.MongoClient.read_preference>`
 property in the following example, permits reads from a
 :term:`secondary` (as well as a primary) for the entire connection .
 
 .. code-block:: python
 
-   conn = pymongo.Connection(read_preference=pymongo.SECONDARY)
+   conn = pymongo.MongoClient(read_preference=pymongo.SECONDARY)
 
 Conversely, the
-:py:attr:`SECONDARY_ONLY <pymongo:pymongo.connection.Connection.read_preference>`
+:py:attr:`SECONDARY_ONLY <pymongo:pymongo.mongo_client.MongoClient.read_preference>`
 read preference means that the
 client will only send read operation only to the secondary member
 
 .. code-block:: python
 
-   conn = pymongo.Connection(read_preference=pymongo.SECONDARY_ONLY)
+   conn = pymongo.MongoClient(read_preference=pymongo.SECONDARY_ONLY)
 
 You can also specify
-:py:attr:`read_preference <pymongo.collection.Collection.read_preference>`
-for specific queries,
-as follows:
+:py:class:`read_preference <pymongo.read_preferences.ReadPreference>`
+for specific queries, as follows:
 
 .. code-block:: python
 
diff --git a/source/use-cases/storing-log-data.txt b/source/use-cases/storing-log-data.txt
index 36cd1eecea9..534dff3ecee 100644
--- a/source/use-cases/storing-log-data.txt
+++ b/source/use-cases/storing-log-data.txt
@@ -195,7 +195,7 @@ using PyMongo, with an event from the Apache Log:
    >>> import bson
    >>> import pymongo
    >>> from datetime import datetime
-   >>> conn = pymongo.Connection()
+   >>> conn = pymongo.MongoClient()
    >>> db = conn.event_db
    >>> event = {
    ...     _id: bson.ObjectId(),