diff --git a/tests/docker/codeception/docker-entrypoint.sh b/tests/docker/codeception/docker-entrypoint.sh
index ada6f62e0a..b76ef89b0e 100644
--- a/tests/docker/codeception/docker-entrypoint.sh
+++ b/tests/docker/codeception/docker-entrypoint.sh
@@ -100,6 +100,7 @@ CONFIG+="define('WP_DEBUG_DISPLAY', true);\n"
 CONFIG+="define('WP_DEBUG_LOG', true);\n"
 CONFIG+="define('COOKIE_DOMAIN', \$_SERVER['HTTP_HOST']);\n"
 CONFIG+="define('WP_AUTO_UPDATE_CORE', false);\n"
+CONFIG+="define('DISABLE_WP_CRON', true);\n"
 
 # fix for WP CLI bug (https://core.trac.wordpress.org/ticket/44569)
 CONFIG+="if (!isset(\$_SERVER['SERVER_NAME'])) \$_SERVER['SERVER_NAME'] = '';\n"