diff --git a/go.mod b/go.mod
new file mode 100644
index 00000000..d9f70122
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,6 @@
+module github.com/golang/protobuf/v2
+
+require (
+	github.com/golang/protobuf v1.2.1-0.20190311233832-968e039ade03
+	github.com/google/go-cmp v0.2.0
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 00000000..a4927366
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,4 @@
+github.com/golang/protobuf v1.2.1-0.20190311233832-968e039ade03 h1:9fMonKrK3A/zUsodyCLUQVFrEDPi/veKKdEemKA8H9k=
+github.com/golang/protobuf v1.2.1-0.20190311233832-968e039ade03/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/google/go-cmp v0.2.0 h1:+dTQ8DZQJz0Mb/HjFlkptS1FeQ4cWSnN941F8aEG4SQ=
+github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=