third_party/py: bump gevent and greenlet to latest versions
Previously specified gevent version was not compatible with Python 3.9.
Change-Id: I5c8ef317d65187dab2a0b0e217c474cda80bc496
diff --git a/third_party/py/requirements.txt b/third_party/py/requirements.txt
index d7f0f3d..1a50c93 100644
--- a/third_party/py/requirements.txt
+++ b/third_party/py/requirements.txt
@@ -19,8 +19,8 @@
Flask-SQLAlchemy==2.4.0
Flask-WTF==0.14.2
future==0.17.1
-gevent==1.4.0
-greenlet==0.4.15
+gevent==20.9.0
+greenlet==0.4.17
gunicorn==19.9.0
idna==2.8
invoke==1.2.0