diff --git a/.travis.yml b/.travis.yml
index 9496a2f..2856216 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,15 +5,12 @@ rvm:
   - 2.3.4
   - 2.2.7
 
-# Not working, because REDMINE_PATH is not set at this stage
-#gemfile:
-#  - $REDMINE_PATH/Gemfile
-
 env:
   - REDMINE_VER=3.4-stable DB=postgresql
   # - REDMINE_VER=master
 
 sudo: true
+cache: bundler
 
 addons:
   postgresql: "9.6"