diff --git a/.travis.yml b/.travis.yml
index 64f7222..0dc1923 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,10 @@ dist: xenial
 
 language: go
 go:
-  - "1.12"
+  - "1.13"
+
+env:
+  - GO111MODULE=on
 
 # Only clone the most recent commit.
 git: