diff --git a/.travis.yml b/.travis.yml
index d13e146..dc1232f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,5 @@
+sudo: false
+
 before_install:
  - cd ${TMPDIR-/tmp}
  - wget -q http://doxygen.nl/files/doxygen-1.8.19.src.tar.gz
@@ -18,6 +20,7 @@ script:
 
 deploy:
   provider: pages
+  skip_cleanup: true
   local_dir: docs/html
   github_token: $GH_REPO_TOKEN
   on: