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In a recent paper (Crida et al. 2018, accepted on April 19), we presented amethod to derive the mass and radius of a transiting exoplanet and theirintrinsic correlation, that we applied to 55 Cnc e. We wrote: "More preciseobservations of the transit would be very useful in this particular case andwould allow to increase significantly the gain on the planetary densityprecision." Three months later, Bourrier et al. (2018) published newobservations of the system. Additionally, Gaia's DR2 was released on April 25,2018. The purpose of this research note is solely to implement these precisenew data in our pipeline to provide an up-to-date result of our model. We find$R_p = 1.947\pm 0.038\,R_\oplus$ and $M_p = 8.59\pm 0.43\,M_\oplus$. We alsodouble the precision on the planetary density ($\rho_p = 1.164\pm0.062\,\rho_\oplus$), which allows us to refine the estimates for all interiorparameters of interest. In particular, we now find that the radius of thegaseous envelope is $0.03\pm 0.02\,R_p$.

Mass, radius, and composition of the transiting planet 55 Cnc e : using interferometry and correlations --- A quick update