diff --git a/.travis.yml b/.travis.yml
index 4aa27ee..c4798e1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,5 +2,6 @@ language: go
 matrix:
   include:
     - go: "1.11"
+      env: GO111MODULE=on
   install:
     - go get github.com/mmcdole/gofeed