  The quartic self-interacting conformal scalar field is used to construct a
thin-shell wormhole satisfying all energy conditions. Accompanying the scalar
field is the extremal Reissner-Nordstr\"om black hole with a positive
cosmological constant. New junction conditions apt for the higher-order terms
are introduced in the Gaussian normal coordinates. Our approach may provide a
guideline towards getting rid of exotic matter in TSWs.
