diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..a5d349c
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module github.com/patrickmn/go-cache
+
+go 1.18
+
+require golang.org/x/exp v0.0.0-20220318154914-8dddf5d87bd8
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..0507dff
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+golang.org/x/exp v0.0.0-20220318154914-8dddf5d87bd8 h1:s/+U+w0teGzcoH2mdIlFQ6KfVKGaYpgyGdUefZrn9TU=
+golang.org/x/exp v0.0.0-20220318154914-8dddf5d87bd8/go.mod h1:lgLbSvA5ygNOMpwM/9anMpWVlVJ7Z+cHWq/eFuinpGE=