diff --git a/tests/apps/gogrpc/go.mod b/tests/apps/gogrpc/go.mod
index caf78c1a4..7cad73471 100644
--- a/tests/apps/gogrpc/go.mod
+++ b/tests/apps/gogrpc/go.mod
@@ -4,7 +4,7 @@ go 1.12
 
 require (
 	cloud.google.com/go v0.44.3 // indirect
-	github.com/golang/protobuf v1.3.4
+	github.com/golang/protobuf v1.3.5
 	github.com/google/go-cmp v0.3.1 // indirect
 	github.com/google/pprof v0.0.0-20190723021845-34ac40c74b70 // indirect
 	github.com/hashicorp/golang-lru v0.5.3 // indirect
diff --git a/tests/apps/gogrpc/go.sum b/tests/apps/gogrpc/go.sum
index 6039023d7..18e279f1d 100644
--- a/tests/apps/gogrpc/go.sum
+++ b/tests/apps/gogrpc/go.sum
@@ -26,6 +26,8 @@ github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I
 github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
 github.com/golang/protobuf v1.3.4 h1:87PNWwrRvUSnqS4dlcBU/ftvOIBep4sYuBLlh6rX2wk=
 github.com/golang/protobuf v1.3.4/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
+github.com/golang/protobuf v1.3.5 h1:F768QJ1E9tib+q5Sc8MkdJi1RxLTbRcTf8LJV56aRls=
+github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=