diff --git a/.travis.yml b/.travis.yml
index b93f619..81aceac 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,8 @@ language: php
 
 dist: trusty
 
+group: deprecated-2017Q4
+
 cache:
   directories:
     - $HOME/.composer/cache/files
@@ -43,15 +45,15 @@ matrix:
         - DB=MYSQL
         - PDO=1
     # behat tests
-    - php: 5.6
+    - php: 7.0
       env:
         - BEHAT_TEST="@framework"
         - DB=MYSQL
-    - php: 5.6
+    - php: 7.0
       env:
         - BEHAT_TEST="@cms"
         - DB=MYSQL
-    - php: 5.6
+    - php: 7.0
       env:
         - BEHAT_TEST="@asset-admin"
         - DB=MYSQL
@@ -66,7 +68,7 @@ before_script:
 # Install composer dependencies
   - composer validate
   - if [[ $DB == PGSQL ]]; then composer require --no-update silverstripe/postgresql:2.0.x-dev; fi
-  - if [[ $BEHAT_TEST ]]; then composer require --no-update silverstripe/behat-extension:^3 silverstripe/serve:dev-master se/selenium-server-standalone:2.41.0; fi;
+  - if [[ $BEHAT_TEST ]]; then composer require --no-update silverstripe/behat-extension:^3 silverstripe/serve:^2 se/selenium-server-standalone:2.41.0; fi;
   - composer install --prefer-dist --no-interaction --no-progress --no-suggest --optimize-autoloader --verbose --profile
 
 # Start behat services