diff --git a/scripts/protocgen-pulsar.sh b/scripts/protocgen-pulsar.sh
index 4cd170d..576c793 100644
--- a/scripts/protocgen-pulsar.sh
+++ b/scripts/protocgen-pulsar.sh
@@ -4,7 +4,7 @@ set -eo pipefail
 
 protoc_install_gopulsar() {
   go install github.com/cosmos/cosmos-proto/cmd/protoc-gen-go-pulsar@latest
-  go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
+  go install google.golang.org/protobuf/cmd/protoc-gen-go@v1.28.1
 }
 
 protoc_install_gopulsar