diff --git a/.travis.yml b/.travis.yml
index 44d784ea091..2020976d754 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -93,23 +93,26 @@ install:
   echo
 
 - |
-  echo "Installing Composer dependencies - PHP Unit, Parallel Lint, PHP CodeSniffer - for $TRAVIS_PHP_VERSION"
+  echo "Installing Composer dependencies - PHP Unit, Parallel Lint, PHP CodeSniffer, PHP Vardump check - for $TRAVIS_PHP_VERSION"
   if [ "$TRAVIS_PHP_VERSION" = '5.6' ]; then
     composer -n require phpunit/phpunit ^5 \
                         php-parallel-lint/php-parallel-lint ^1 \
                         php-parallel-lint/php-console-highlighter ^0 \
+                        php-parallel-lint/php-var-dump-check ~0.4 \
                         squizlabs/php_codesniffer ^3
   fi
   if [ "$TRAVIS_PHP_VERSION" = '7.0' ] || [ "$TRAVIS_PHP_VERSION" = '7.1' ] || [ "$TRAVIS_PHP_VERSION" = '7.2' ]; then
     composer -n require phpunit/phpunit ^6 \
                         php-parallel-lint/php-parallel-lint ^1 \
                         php-parallel-lint/php-console-highlighter ^0 \
+                        php-parallel-lint/php-var-dump-check ~0.4 \
                         squizlabs/php_codesniffer ^3
   fi
   if [ "$TRAVIS_PHP_VERSION" = '7.3' ] || [ "$TRAVIS_PHP_VERSION" = '7.4' ] || [ "$TRAVIS_PHP_VERSION" = '7.4.22' ]; then
     composer -n require phpunit/phpunit ^7 \
                         php-parallel-lint/php-parallel-lint ^1.2 \
                         php-parallel-lint/php-console-highlighter ^0 \
+                        php-parallel-lint/php-var-dump-check ~0.4 \
                         squizlabs/php_codesniffer ^3
   fi
   # phpunit 9 is required for php 8
@@ -117,6 +120,7 @@ install:
       composer -n require --ignore-platform-reqs phpunit/phpunit ^7 \
                                                  php-parallel-lint/php-parallel-lint ^1.2 \
                                                  php-parallel-lint/php-console-highlighter ^0 \
+                                                 php-parallel-lint/php-var-dump-check ~0.4 \
                                                  squizlabs/php_codesniffer ^3
   fi
   echo