diff --git a/.travis.yml b/.travis.yml
index 670a55a..f96ef50 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,13 @@
 language: go
 
 go:
-  - 1.6
-  - 1.7
-  - 1.8
-  - 1.9
+  - 1.7.x
+  - 1.8.x
+  - 1.9.x
+  - "1.10.x"
+  - "1.11.x"
+  - "1.12.x"
+  - "1.13.x"
   - tip
 
 before_install:
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..81db09a
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module github.com/onrik/micha
+
+go 1.13