diff --git a/docs/oauth-installed.md b/docs/oauth-installed.md
index 322d678..4aa68c9 100644
--- a/docs/oauth-installed.md
+++ b/docs/oauth-installed.md
@@ -109,7 +109,7 @@
 
 Use the authorized `Http` object to call Google APIs by completing the following steps:
 
-1. Build a service object for the API that you want to call. You build a a service object by calling the `build` function with the name and version of the API and the authorized Http object. For example, to call version 2 of the Drive API:
+1. Build a service object for the API that you want to call. You build a a service object by calling the `build` function with the name and version of the API and the authorized Http object. For example, to call version 3 of the Drive API:
 
     ```python
     from googleapiclient.discovery import build
@@ -170,4 +170,4 @@
   list_drive_files(service,
                    orderBy='modifiedByMeTime desc',
                    pageSize=5)
-```
\ No newline at end of file
+```