On 14 August 2018 the Union Cycliste Internationale announced that it had notified Fabian Hernando Puerta Zapata of an Adverse Analytical Finding (AAF) of boldenone in a sample collected in the scope of an out-of-competition control on 11 June 2018.
In accordance with UCI Anti-Doping Rules, Puerta was provisionally suspended until the adjudication of the affair.[3]
On 29 August 2019 the UCI announced a four-year Anti-Doping Rule Violation (ADRV) of Fabian Hernando Puerta Zapata. The ADRV Date was 11 June 2018, and the period of ineligibility is until 12 August 2022.[4]