diff --git a/datagen/requirements.txt b/datagen/requirements.txt
index 27697c1..5f0d9a9 100644
--- a/datagen/requirements.txt
+++ b/datagen/requirements.txt
@@ -11,7 +11,7 @@ google-cloud-pubsub==0.41.0
 google-resumable-media==0.3.2
 googleapis-common-protos==1.6.0
 grpc-google-iam-v1==0.11.4
-grpcio==1.21.1
+grpcio==1.53.2
 idna==2.8
 protobuf==3.8.0
 pyasn1==0.4.5