diff --git a/gwy/templates/go.mod.tmpl b/gwy/templates/go.mod.tmpl
index 0cd4a3fe..fdfcab65 100644
--- a/gwy/templates/go.mod.tmpl
+++ b/gwy/templates/go.mod.tmpl
@@ -9,6 +9,6 @@ require (
 	github.com/sirupsen/logrus v1.9.0
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.12.0
-	google.golang.org/grpc v1.48.0
+	google.golang.org/grpc v1.55.0
 	google.golang.org/protobuf v1.28.1
 )
diff --git a/variables.sh b/variables.sh
index 310f4bf5..a8163f92 100755
--- a/variables.sh
+++ b/variables.sh
@@ -8,8 +8,8 @@ LATEST=${1:false}
 
 DEBIAN_VERSION=${DEBIAN_VERSION:-bullseye}
 GO_VERSION=${GO_VERSION:-1.17}
-GRPC_VERSION=${GRPC_VERSION:-1.48}
-GRPC_JAVA_VERSION=${GRPC_JAVA_VERSION:-1.48}
+GRPC_VERSION=${GRPC_VERSION:-1.56}
+GRPC_JAVA_VERSION=${GRPC_JAVA_VERSION:-1.56}
 GRPC_WEB_VERSION=${GRPC_WEB_VERSION:-1.3.1}
 GRPC_GATEWAY_VERSION=${GRPC_GATEWAY_VERSION:-v2.0.1}
 UBER_PROTOTOOL_VERSION=${UBER_PROTOTOOL_VERSION:-1.10.0}