diff --git a/pulsar-function-go/go.mod b/pulsar-function-go/go.mod
index 1a0f299..486eb94 100644
--- a/pulsar-function-go/go.mod
+++ b/pulsar-function-go/go.mod
@@ -10,7 +10,7 @@
 	github.com/sirupsen/logrus v1.6.0
 	github.com/stretchr/testify v1.8.4
 	google.golang.org/grpc v1.60.0
-	google.golang.org/protobuf v1.32.0
+	google.golang.org/protobuf v1.33.0
 	gopkg.in/yaml.v2 v2.4.0
 )
 
diff --git a/pulsar-function-go/go.sum b/pulsar-function-go/go.sum
index 2cadeb1..fbd976f 100644
--- a/pulsar-function-go/go.sum
+++ b/pulsar-function-go/go.sum
@@ -745,8 +745,8 @@
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.32.0 h1:pPC6BG5ex8PDFnkbrGU3EixyhKcQ2aDuBS36lqK/C7I=
-google.golang.org/protobuf v1.32.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
+google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=