diff --git a/.travis.yml b/.travis.yml
index 2ed346231..db9842821 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,10 @@ branches:
   only:
   - master
   - develop
+before_install:
+  - docker load -i docker_images/images.tar || true
+before_cache:
+  - docker save -o docker_images/images.tar $(docker images -a -q)
 cache:
   directories:
   - /tmp/elpa