diff --git a/.travis.yml b/.travis.yml
index facf02ecdc96ae6aa204d10206e4510aece6044d..8cc6a15ab84a1cc13317a1d10c2996b2d572f9ff 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,22 +9,22 @@ php:
   - hhvm
 
 env:
-  - COMMAND="composer install"
-  - COMMAND="composer update"
+  - COMMAND="install"
+  - COMMAND="update"
 
 matrix:
   allow_failures:
     - php: hhvm
 
 before_script:
-  - if [[ ${COMMAND} == "composer install" ]]; then ${COMMAND}; else composer update; fi
-  - if [[ "$TRAVIS_PHP_VERSION" == "7.0" ]]; then composer require --dev vimeo/psalm:0.3.92; fi
+  - composer ${COMMAND}
+  - if [[ "$TRAVIS_PHP_VERSION" == "7.3" ]]; then composer require --dev vimeo/psalm:0.3.92; fi
   - if [[ "$TRAVIS_PHP_VERSION" == "5.6" ]]; then composer require --dev php-coveralls/php-coveralls; fi
 
 script:
   - bin/check-syntax.sh
   - if [[ "$TRAVIS_PHP_VERSION" == "5.6" ]]; then php vendor/phpunit/phpunit/phpunit; else php vendor/phpunit/phpunit/phpunit --no-coverage; fi
-  - if [[ "$TRAVIS_PHP_VERSION" == "7.0" ]]; then vendor/bin/psalm; fi
+  - if [[ "$TRAVIS_PHP_VERSION" == "7.3" ]]; then vendor/bin/psalm; fi
 
 after_success:
   - if [[ "$TRAVIS_PHP_VERSION" == "5.6" ]]; then php vendor/bin/php-coveralls -v; fi