diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
index 2198c63b4..da8849c90 100644
--- a/.github/CONTRIBUTING.md
+++ b/.github/CONTRIBUTING.md
@@ -92,9 +92,9 @@ gspread uses [vcrpy](https://github.com/kevin1024/vcrpy) to record and replay HT
 
 ### `GS_CREDS_FILENAME` environment variable
 
-You must provide service account credentials using the `GS_CREDS_FILENAME` environment variable in order to make HTTP requests to the Sheets API.
+You must provide OAuth Client credentials using the `GS_CREDS_FILENAME` environment variable in order to make HTTP requests to the Sheets API.
 
-[Obtain service account credentials from Google Developers Console](https://docs.gspread.org/en/latest/oauth2.html#for-bots-using-service-account).
+[Obtain OAuth Client credentials from Google Developers Console](https://docs.gspread.org/en/latest/oauth2.html#for-end-users-using-oauth-client-id).
 
 ### `GS_RECORD_MODE` environment variable
 
diff --git a/tests/conftest.py b/tests/conftest.py
index 82f17da48..91dfd42c6 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -7,7 +7,6 @@
 import pytest
 from google.auth.credentials import Credentials
 from google.oauth2.credentials import Credentials as UserCredentials
-from google.oauth2.service_account import Credentials as ServiceAccountCredentials
 from requests import Response
 from vcr import VCR
 from vcr.errors import CannotOverwriteExistingCassetteException
@@ -20,7 +19,7 @@
 RECORD_MODE = os.getenv("GS_RECORD_MODE", "none")
 
 SCOPE = [
-    "https://spreadsheets.google.com/feeds",
+    "https://www.googleapis.com/auth/spreadsheets",
     "https://www.googleapis.com/auth/drive.file",
 ]
 DUMMY_ACCESS_TOKEN = "<ACCESS_TOKEN>"
@@ -29,7 +28,7 @@
 
 
 def read_credentials(filename: str) -> Credentials:
-    return ServiceAccountCredentials.from_service_account_file(filename, scopes=SCOPE)
+    return UserCredentials.from_authorized_user_file(filename, scopes=SCOPE)
 
 
 def prefixed_counter(prefix: str, start: int = 1) -> Generator[str, None, None]: