Oxidation State Change in Nucleophilic Substitution

In an organic chemistry reaction, a nucleophilic substitution is performed on 1-bromopropane (C₃H₇Br) in the presence of a strong nucleophile, sodium hydroxide (NaOH). The reaction proceeds via a bimolecular mechanism (S_N2), resulting in the formation of propan-1-ol (C₃H₈O). This reaction involves the displacement of the bromine atom by the hydroxide ion.

What is the change in the oxidation state of the carbon atom in 1-bromopropane during this nucleophilic substitution reaction?