diff --git a/.travis.yml b/.travis.yml
index 6d4cc50..213be7a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,25 +1,30 @@
 language: php
 
-dist: trusty
+dist: xenial
+
+services:
+  - mysql
+  - postgresql
+
+addons:
+  apt:
+    packages:
+      - tidy
 
 env:
   global:
-    - COMPOSER_ROOT_VERSION=2.0.x-dev
+    - COMPOSER_ROOT_VERSION=2.x-dev
 
 matrix:
   include:
-    - php: 5.6
-      env: DB=MYSQL RECIPE_VERSION=4.3.x-dev PHPUNIT_TEST=1
     - php: 7.1
-      env: DB=MYSQL RECIPE_VERSION=4.3.x-dev PHPCS_TEST=1 PHPUNIT_TEST=1
+      env: DB=MYSQL PHPCS_TEST=1 PHPUNIT_TEST=1
     - php: 7.1
-      env: DB=MYSQL RECIPE_VERSION=4.4.x-dev PHPUNIT_TEST=1
+      env: DB=PGSQL PHPUNIT_COVERAGE_TEST=1
     - php: 7.2
-      env: DB=PGSQL RECIPE_VERSION=4.3.x-dev PHPUNIT_COVERAGE_TEST=1
-    - php: 7.2
-      env: DB=MYSQL RECIPE_VERSION=4.4.x-dev PHPUNIT_TEST=1
+      env: DB=MYSQL PHPUNIT_TEST=1
     - php: 7.3
-      env: DB=MYSQL RECIPE_VERSION=4.x-dev PHPUNIT_TEST=1
+      env: DB=MYSQL PHPUNIT_TEST=1
 
 before_script:
   # Init PHP
@@ -28,9 +33,9 @@ before_script:
 
   # Install composer dependencies
   - composer validate
-  - composer require --no-update silverstripe/recipe-core:"$RECIPE_VERSION"
-  - if [[ $DB == PGSQL ]]; then composer require --no-update silverstripe/postgresql 2.1.x-dev; fi
-  - composer install --prefer-dist --no-interaction --no-progress --no-suggest --optimize-autoloader --verbose --profile
+  - composer require --no-update silverstripe/recipe-core:^4
+  - if [[ $DB == PGSQL ]]; then composer require --no-update silverstripe/postgresql:^2; fi
+  - composer install --prefer-source --no-interaction --no-progress --no-suggest --optimize-autoloader --verbose --profile
 
 script:
   - if [[ $PHPUNIT_TEST ]]; then vendor/bin/phpunit; fi
diff --git a/composer.json b/composer.json
index 2776f8b..0fe1e58 100644
--- a/composer.json
+++ b/composer.json
@@ -28,11 +28,6 @@
             "SilverStripe\\RestfulServer\\Tests\\": "tests"
         }
     },
-    "extra": {
-        "branch-alias": {
-            "dev-master": "2.x-dev"
-        }
-    },
     "prefer-stable": true,
     "minimum-stability": "dev"
 }