diff --git a/go.mod b/go.mod
new file mode 100644
index 00000000..91c614ed
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,11 @@
+module github.com/nghttp2/nghttp2
+
+go 1.18
+
+require (
+	github.com/bradfitz/gomemcache v0.0.0-20220106215444-fb4bf637b56d
+	github.com/tatsuhiro-t/go-nghttp2 v0.0.0-20150408091349-4742878d9c90
+	golang.org/x/net v0.0.0-20220421235706-1d1ef9303861
+)
+
+require golang.org/x/text v0.3.7 // indirect