diff --git a/.travis.yml b/.travis.yml
index 1e712488..d7e9bb51 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,3 +23,4 @@ r_github_packages:
   - hadley/testthat
   - ProjectMOSAIC/NHANES
   - ProjectMOSAIC/mosaicData
+  - Rexamine/stringi