Revert "fix: update `_GOOGLE_OAUTH2_CERTS_URL` (#365)" (#444)
This reverts commit 054db75734756b0e82e7984ca07fa80025edc908.
diff --git a/google/oauth2/id_token.py b/google/oauth2/id_token.py
index 5113c99..1dbfb20 100644
--- a/google/oauth2/id_token.py
+++ b/google/oauth2/id_token.py
@@ -67,7 +67,7 @@
# The URL that provides public certificates for verifying ID tokens issued
# by Google's OAuth 2.0 authorization server.
-_GOOGLE_OAUTH2_CERTS_URL = "https://www.googleapis.com/oauth2/v3/certs"
+_GOOGLE_OAUTH2_CERTS_URL = "https://www.googleapis.com/oauth2/v1/certs"
# The URL that provides public certificates for verifying ID tokens issued
# by Firebase and the Google APIs infrastructure