diff --git a/conformance/go.mod b/conformance/go.mod
new file mode 100644
index 0000000000..2143e6ca50
--- /dev/null
+++ b/conformance/go.mod
@@ -0,0 +1,10 @@
+module github.com/golang/protobuf/conformance
+
+go 1.11
+
+require (
+	github.com/golang/protobuf v1.3.0
+	google.golang.org/genproto v0.0.0-20180831171423-11092d34479b
+)
+
+replace github.com/golang/protobuf => ../
diff --git a/conformance/go.sum b/conformance/go.sum
new file mode 100644
index 0000000000..5ef87a2eb0
--- /dev/null
+++ b/conformance/go.sum
@@ -0,0 +1,2 @@
+google.golang.org/genproto v0.0.0-20180831171423-11092d34479b h1:lohp5blsw53GBXtLyLNaTXPXS9pJ1tiTw61ZHUoE9Qw=
+google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
diff --git a/go.mod b/go.mod
index 20240d8cbb..e99e73a2de 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
 module github.com/golang/protobuf
 
-require google.golang.org/genproto v0.0.0-20180831171423-11092d34479b
+go 1.11
diff --git a/go.sum b/go.sum
index 5ef87a2eb0..e69de29bb2 100644
--- a/go.sum
+++ b/go.sum
@@ -1,2 +0,0 @@
-google.golang.org/genproto v0.0.0-20180831171423-11092d34479b h1:lohp5blsw53GBXtLyLNaTXPXS9pJ1tiTw61ZHUoE9Qw=
-google.golang.org/genproto v0.0.0-20180831171423-11092d34479b/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=