  We investigate a gedanken experiment to destroy an extremally charged black
hole by dropping a test particle, provided that there are multiple $U(1)$ gauge
fields coupled with each other through higher derivative interactions. In the
absence of higher derivative corrections, it is known that the Coulomb
repulsion prevents a test particle that would break the extremal condition from
falling into an extremal black hole and therefore the black hole cannot be
destroyed. We extend this observation to include higher derivative corrections.
Although the extremal condition is modified by the higher derivative
interactions, we find that the repulsive force induced by the higher derivative
couplings is responsible for preventing a test particle that would break the
modified extremal condition to reach the event horizon. Thus, we confirm that
the weak cosmic censorship conjecture holds for extremally charged black holes
even in the presence of higher derivative corrections, as long as the test
particle approximation is justified.
