diff --git a/.travis.yml b/.travis.yml
index 1c5926702..0d6c91544 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,7 +17,7 @@ addons:
 
 env:
   global:
-    - COMPOSER_ROOT_VERSION=4.x-dev
+    - COMPOSER_ROOT_VERSION=4.6.x-dev
 
 matrix:
   fast_finish: true
@@ -75,8 +75,8 @@ before_script:
   - mkdir ./public
   - if [[ $DB == PGSQL ]]; then composer require silverstripe/postgresql:2.x-dev --no-update; fi
   - if [[ $DB == SQLITE ]]; then composer require silverstripe/sqlite3:2.x-dev --no-update; fi
-  - composer require silverstripe/recipe-testing:^1 silverstripe/recipe-core:4.x-dev silverstripe/admin:1.x-dev silverstripe/versioned:1.x-dev --no-update
-  - if [[ $PHPUNIT_TEST == cms ]]; then composer require silverstripe/recipe-cms:4.x-dev --no-update; fi
+  - composer require silverstripe/recipe-testing:^1 silverstripe/recipe-core:4.6.x-dev silverstripe/admin:1.6.x-dev silverstripe/versioned:1.6.x-dev --no-update
+  - if [[ $PHPUNIT_TEST == cms ]]; then composer require silverstripe/recipe-cms:4.6.x-dev --no-update; fi
   - if [[ $PHPCS_TEST ]]; then composer global require squizlabs/php_codesniffer:^3 --prefer-dist --no-interaction --no-progress --no-suggest -o; fi
   - composer install --prefer-source --no-interaction --no-progress --no-suggest --optimize-autoloader --verbose --profile