It was named Sports Unit Alfonso López Pumarejo, in honor of the one who led the reins of the nation for two periods (1934 to 1938 and 1942 to 1945), decree issued by the governor of the time, Alfredo Cadena D'Costa.

The works consisted of specifically erecting a parking lot for cars, removing the cover on the western stand, moving the radio booths, constructing boxes for dignitaries, expanding the north and south west stands and, finally, the construction of a preferential high grandstand, which increased the capacity of the stage to a capacity of 28,000 spectators.

In addition, work began to install seating in the upper and lower western and eastern stands, which reduced the capacity of the stage to 25,000 spectators.

The synthetic grass that was removed was used in the spaces where the athletic track was that was eliminated, completing the ornament of the surroundings with decorative plants and flowers.

Without a doubt, the most significant reform was the installation of an electronic board in the northern area of the stadium, with a modern programmable LED lighting system.

[10] In 2017 the initiative that had existed for several years to change the current name of the stadium to Hermán Aceros, a national sports glory and former player of Atlético Bucaramanga, was resumed, but it did not come to fruition.

[13] On 11 June 2024 after a survey conducted through his Twitter account), the Governor of Santander Juvenal Díaz officially announced that From that date on, the departmental stadium changed its name to Américo Montanini.