diff --git a/.travis.yml b/.travis.yml
index f4ef348c..b7b36287 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,7 +38,7 @@ before_install:
   - echo 'error_log = "/tmp/php.error.log"' >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
   - psql -U travis -c 'create database travis_ci_test'
   - psql -U travis -d travis_ci_test -c 'create extension postgis'
-  - travis_retry composer self-update --stable
+  - travis_retry composer self-update --snapshot
   - curl -OL https://squizlabs.github.io/PHP_CodeSniffer/phpcs.phar
 
 install: