diff --git a/requirements.txt b/requirements.txt
index d028f82..06c8a38 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ google-auth==1.5.1
 google-cloud-core==0.28.1
 google-cloud-datastore==1.7.1
 googleapis-common-protos==1.5.3
-grpcio==1.16.0
+grpcio==1.37.1
 gunicorn==19.9.0
 idna==2.7
 isort==4.3.4