diff --git a/.travis.yml b/.travis.yml
index fca1e6948..4904788cd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,9 @@ go:
   - 1.12.x
   - tip
 
+env:
+  - GO111MODULE=on
+
 matrix:
   allow_failures:
     - go: tip