diff --git a/ext_authz/auth/grpc-service/go.mod b/ext_authz/auth/grpc-service/go.mod
index ff83a799..85743b84 100644
--- a/ext_authz/auth/grpc-service/go.mod
+++ b/ext_authz/auth/grpc-service/go.mod
@@ -6,7 +6,7 @@ require (
 	github.com/envoyproxy/go-control-plane/envoy v1.37.0
 	github.com/golang/protobuf v1.5.4
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20260226221140-a57be14db171
-	google.golang.org/grpc v1.81.0
+	google.golang.org/grpc v1.81.1
 )
 
 require (
diff --git a/ext_authz/auth/grpc-service/go.sum b/ext_authz/auth/grpc-service/go.sum
index 3af2274f..c6bb6cb1 100644
--- a/ext_authz/auth/grpc-service/go.sum
+++ b/ext_authz/auth/grpc-service/go.sum
@@ -40,7 +40,7 @@ gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4=
 gonum.org/v1/gonum v0.17.0/go.mod h1:El3tOrEuMpv2UdMrbNlKEh9vd86bmQ6vqIcDwxEOc1E=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20260226221140-a57be14db171 h1:ggcbiqK8WWh6l1dnltU4BgWGIGo+EVYxCaAPih/zQXQ=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20260226221140-a57be14db171/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
-google.golang.org/grpc v1.81.0 h1:W3G9N3KQf3BU+YuCtGKJk0CmxQNbAISICD/9AORxLIw=
-google.golang.org/grpc v1.81.0/go.mod h1:xGH9GfzOyMTGIOXBJmXt+BX/V0kcdQbdcuwQ/zNw42I=
+google.golang.org/grpc v1.81.1 h1:VnnIIZ88UzOOKLukQi+ImGz8O1Wdp8nAGGnvOfEIWQQ=
+google.golang.org/grpc v1.81.1/go.mod h1:xGH9GfzOyMTGIOXBJmXt+BX/V0kcdQbdcuwQ/zNw42I=
 google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
 google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=