  One of the defining properties of debris discs compared to protoplanetary
discs used to be their lack of gas, yet small amounts of gas have been found
around an increasing number of debris discs in recent years. These debris discs
found to have gas tend to be both young and bright. In this paper we conduct a
deep search for CO gas in the system HD 95086 - a 17 Myr old, known planet host
that also has a debris disc with a high fractional luminosity of
$1.5\times10^{-3}$. Using the Atacama Large Millimeter/submillimeter Array
(ALMA) we search for CO emission lines in bands 3, 6 and 7. By implementing a
spectro-spatial filtering technique, we find tentative evidence for CO $J$=2-1
emission in the disc located at a velocity, 8.5$\pm$0.2 km s$^{-1}$, consistent
with the radial velocity of the star. The tentative detection suggests that the
gas on the East side of the disc is moving towards us. In the same region where
continuum emission is detected, we find an integrated line flux of 9.5$\pm$3.6
mJy km s$^{-1}$, corresponding to a CO mass of (1.4-13)$\times10^{-6}$
M$_\oplus$. Our analysis confirms that the level of gas present in the disc is
inconsistent with the presence of primordial gas in the system and is
consistent with second generation production through the collisional cascade.
