diff --git a/benchmarks/online-shop/emailservice/requirements.in b/benchmarks/online-shop/emailservice/requirements.in
index b66f3f2f..b617baf9 100644
--- a/benchmarks/online-shop/emailservice/requirements.in
+++ b/benchmarks/online-shop/emailservice/requirements.in
@@ -1,6 +1,6 @@
 google-api-core==2.8.2
 grpcio-health-checking==1.47.0
-grpcio==1.47.0
+grpcio==1.53.0
 jinja2==3.1.2
 opencensus==0.9.0
 opencensus-ext-stackdriver==0.8.0
diff --git a/benchmarks/online-shop/emailservice/requirements.txt b/benchmarks/online-shop/emailservice/requirements.txt
index 58161d55..abe717c0 100644
--- a/benchmarks/online-shop/emailservice/requirements.txt
+++ b/benchmarks/online-shop/emailservice/requirements.txt
@@ -45,7 +45,7 @@ googleapis-common-protos==1.56.3
     # via
     #   google-api-core
     #   grpcio-status
-grpcio==1.47.0
+grpcio==1.53.0
     # via
     #   -r requirements.in
     #   google-api-core
@@ -111,7 +111,6 @@ six==1.16.0
     # via
     #   google-auth
     #   google-auth-httplib2
-    #   grpcio
 uritemplate==3.0.1
     # via google-api-python-client
 urllib3==1.26.10