diff --git a/.travis.yml b/.travis.yml
index 0007c02..f43ccd6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,7 @@ language: go
 sudo: false
 go_import_path: github.com/gobeam/Stringy
 go:
-- 1.9
+- 1.13
 
 script:
 - go test
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..72ad9d5
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module github.com/gobeam/Stringy
+
+go 1.13