diff --git a/requirements.txt b/requirements.txt
index 3761ccbef6..93ec625e8b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,4 @@ google-auth>=1.0.1  # Apache-2.0
 ipaddress>=1.0.17  # PSF
 websocket-client>=0.32.0,<=0.40.0 # LGPLv2+
 requests # Apache-2.0
+requests-oauthlib # ISC