diff --git a/tests/apps/gogrpc/go.mod b/tests/apps/gogrpc/go.mod
index 4cde2fb7e..99c6dae31 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 v1.3.2
+	github.com/golang/protobuf v1.3.3
 	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 ae5b9379f..a9f4181d0 100644
--- a/tests/apps/gogrpc/go.sum
+++ b/tests/apps/gogrpc/go.sum
@@ -20,6 +20,8 @@ github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5y
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+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/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=