diff --git a/.travis.yml b/.travis.yml
index 728be043..ca18e027 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,6 +21,7 @@ matrix:
   fast_finish: true
 
 env:
+  - GO111MODULE=on
   - ARN_ROOT=$TRAVIS_BUILD_DIR
 
 # Anything in before_script that returns a nonzero exit code will