diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..b875ace
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,8 @@
+module github.com/chubin/wttr.in/v2
+
+go 1.16
+
+require (
+	github.com/hashicorp/golang-lru v0.6.0
+	github.com/robfig/cron v1.2.0
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..d30f05d
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,4 @@
+github.com/hashicorp/golang-lru v0.6.0 h1:uL2shRDx7RTrOrTCUZEGP/wJUFiUI8QT6E7z5o8jga4=
+github.com/hashicorp/golang-lru v0.6.0/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
+github.com/robfig/cron v1.2.0 h1:ZjScXvvxeQ63Dbyxy76Fj3AT3Ut0aKsyd2/tl3DTMuQ=
+github.com/robfig/cron v1.2.0/go.mod h1:JGuDeoQd7Z6yL4zQhZ3OPEVHB7fL6Ka6skscFHfmt2k=