diff --git a/.travis.yml b/.travis.yml
index 4eda05aa..45afecfc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,18 +7,30 @@ env:
     - PATH=/opt/local/bin:$PATH
     - TESTOPTS="-v"
     - TINYTDS_UNIT_HOST=localhost
-rvm:
-  - 2.1.9
-  - 2.2.5
-  - 2.3.1
+matrix:
+  include:
+    - os: linux
+      rvm: 2.1.9
+      install:
+        - gem install bundler -v '<2'
+        - bundle --version
+        - bundle install
+    - os: linux
+      rvm: 2.2.5
+      install:
+        - gem install bundler -v '<2'
+        - bundle --version
+        - bundle install
+    - os: linux
+      rvm: 2.3.1
+      install:
+        - gem install bundler
+        - bundle --version
+        - bundle install
 before_install:
   - docker info
   - sudo ./test/bin/install-openssl.sh
   - sudo ./test/bin/install-freetds.sh
   - sudo ./test/bin/setup.sh
-install:
-  - gem install bundler
-  - bundle --version
-  - bundle install
 script:
   - bundle exec rake