A child-resistant package comprising an outer casing and an inner casing arranged slidably within the outer casing and being movable between a closed position and an open position wherein immediate opening of the package from the closed position to the open position is prevented, the outer casing comprising - an outer top wall, an outer bottom wall, a first and a second outer sidewall (5, 6), an outer back wall and a first connecting panel next to the second outer sidewall; the inner casing comprising - an inner top wall, an inner bottom wall, a first and second inner sidewall (11, 12), an inner front wall and a second connecting panel next to the first inner sidewall; wherein - the corner between the outer top wall and the first outer sidewall is provided with a corner indent wall having a locking aperture; - the outer top or bottom wall (3, 4) comprises at least one release flap; - the corner between the first inner sidewall and the second connecting panel comprises a locking button formed between two cut away areas, whereby the locking button and the locking aperture are overlapping in the closed position; - a set of contacting bridges are provided between the edges of the first connecting panel and the second connecting panel and arranged such that the release flap at least partly overlap with the set of contacting bridges in the closed position. the outer casing comprising - an outer top wall, an outer bottom wall, a first and a second outer sidewall (5, 6), an outer back wall and a first connecting panel next to the second outer sidewall; - an outer top wall, an outer bottom wall, a first and a second outer sidewall (5, 6), an outer back wall and a first connecting panel next to the second outer sidewall; the inner casing comprising - an inner top wall, an inner bottom wall, a first and second inner sidewall (11, 12), an inner front wall and a second connecting panel next to the first inner sidewall; - an inner top wall, an inner bottom wall, a first and second inner sidewall (11, 12), an inner front wall and a second connecting panel next to the first inner sidewall; wherein - the corner between the outer top wall and the first outer sidewall is provided with a corner indent wall having a locking aperture; - the outer top or bottom wall (3, 4) comprises at least one release flap; - the corner between the first inner sidewall and the second connecting panel comprises a locking button formed between two cut away areas, whereby the locking button and the locking aperture are overlapping in the closed position; - a set of contacting bridges are provided between the edges of the first connecting panel and the second connecting panel and arranged such that the release flap at least partly overlap with the set of contacting bridges in the closed position. - the corner between the outer top wall and the first outer sidewall is provided with a corner indent wall having a locking aperture; - the outer top or bottom wall (3, 4) comprises at least one release flap; - the corner between the first inner sidewall and the second connecting panel comprises a locking button formed between two cut away areas, whereby the locking button and the locking aperture are overlapping in the closed position; - a set of contacting bridges are provided between the edges of the first connecting panel and the second connecting panel and arranged such that the release flap at least partly overlap with the set of contacting bridges in the closed position.