He I triplet absorption profiles obtained considering a fixed stellar XUV flux at the distance of 1 AU of 7.5 erg cm⁻² s⁻¹, a solar He abundance, and different stellar wind strengths expressed in terms of mass-loss rate in g s⁻¹. Considering the strongest stellar wind taken into account, the observed non-detection is reached for He/H values smaller than ≈0.01. The long dashed red line shows the absorption obtained considering the same conditions taken for the solid red line except for a ten times weaker radiation pressure on the He I metastable atoms. The zero Doppler-shifted velocity on the x axis corresponds to a wavelength of 10 830.25 Å, the observed transmission spectrum is shown by black asterisks, and the horizontal dashed line marks the 2σ upper limit. The horizontal dotted line at 1.00 that we placed for reference is largely masked by the yellow line.