  Cosmic ray antiprotons provide a powerful tool to probe dark matter
annihilations in our galaxy. The sensitivity of this important channel is,
however, diluted by sizable uncertainties in the secondary antiproton
background. In this work, we improve the calculation of secondary antiproton
production with a particular focus on the high energy regime. We employ the
most recent collider data and identify a substantial increase of antiproton
cross sections with energy. This increase is driven by the violation of Feynman
scaling as well as by an enhanced strange hyperon production. The updated
antiproton production cross sections are made publicly available for
independent use in cosmic ray studies. In addition, we provide the correlation
matrix of cross section uncertainties for the AMS-02 experiment. At high
energies, the new cross sections improve the compatibility of the AMS-02 data
with a pure secondary origin of antiprotons in cosmic rays.
