diff --git a/infra/gcb/requirements.txt b/infra/gcb/requirements.txt
index 78a4eb672..490aa4367 100644
--- a/infra/gcb/requirements.txt
+++ b/infra/gcb/requirements.txt
@@ -6,3 +6,4 @@ google-cloud-storage
 jinja2
 python-jenkins
 python-dateutil
+oauth2client