On 5 June 2013, Araujo joined Santos Laguna on a year-long loan deal with an option to buy. He made his league debut on 26 July against his former club Cruz Azul, playing the entire match as Santos earned a 3–2 victory. On 19 August 2014, Araujo scored his first goal for Santos in a 3–0 win over UAT in the Copa MX. He won his first cup with Santos Laguna following their victory over Puebla in the final of the Apertura Copa MX. The following year, Araujo won his first league title as Santos defeated Querétaro in the finals of the Clausura tournament. On 20 July, Santos defeated Club América to win the 2015 Campeón de Campeones cup; Araujo started the match and played all 90 minutes.
