diff --git a/dataproc/requirements.txt b/dataproc/requirements.txt
index 1eb9392728e..cc78ad4cc21 100644
--- a/dataproc/requirements.txt
+++ b/dataproc/requirements.txt
@@ -1,4 +1,4 @@
-grpcio==1.27.1
+grpcio==1.27.2
 google-auth==1.11.2
 google-auth-httplib2==0.0.3
 google-cloud==0.34.0
diff --git a/endpoints/bookstore-grpc-transcoding/requirements.txt b/endpoints/bookstore-grpc-transcoding/requirements.txt
index 2ea3c0f6179..ad37962570e 100644
--- a/endpoints/bookstore-grpc-transcoding/requirements.txt
+++ b/endpoints/bookstore-grpc-transcoding/requirements.txt
@@ -1,4 +1,4 @@
-grpcio==1.27.1
+grpcio==1.27.2
 grpcio-tools==1.27.2
 google-auth==1.11.2
 six==1.14.0
diff --git a/endpoints/bookstore-grpc/requirements.txt b/endpoints/bookstore-grpc/requirements.txt
index 11436c05d31..11634435f28 100644
--- a/endpoints/bookstore-grpc/requirements.txt
+++ b/endpoints/bookstore-grpc/requirements.txt
@@ -1,4 +1,4 @@
-grpcio==1.27.1
+grpcio==1.27.2
 grpcio-tools==1.27.2
 google-auth==1.11.2
 six==1.14.0
diff --git a/endpoints/getting-started-grpc/requirements.txt b/endpoints/getting-started-grpc/requirements.txt
index 57a6feafe59..9010b04fa94 100644
--- a/endpoints/getting-started-grpc/requirements.txt
+++ b/endpoints/getting-started-grpc/requirements.txt
@@ -1,2 +1,2 @@
-grpcio==1.26.0
+grpcio==1.27.2
 grpcio-tools==1.27.2
diff --git a/opencensus/requirements.txt b/opencensus/requirements.txt
index 3698c5e47ee..a7e4a346b28 100644
--- a/opencensus/requirements.txt
+++ b/opencensus/requirements.txt
@@ -1,3 +1,3 @@
-grpcio==1.23.0
+grpcio==1.27.2
 opencensus-ext-stackdriver==0.7.2
 opencensus==0.7.7
diff --git a/trace/cloud-trace-demo-app/app/requirements.txt b/trace/cloud-trace-demo-app/app/requirements.txt
index 5686857db9c..2e3a7ec4e11 100644
--- a/trace/cloud-trace-demo-app/app/requirements.txt
+++ b/trace/cloud-trace-demo-app/app/requirements.txt
@@ -5,5 +5,5 @@ Flask==1.1.1
 opencensus-ext-stackdriver==0.7.2
 opencensus-ext-flask==0.7.3
 opencensus-context==0.1.1
-grpcio==1.25.0
+grpcio==1.27.2
 httpretty==0.9.7