The present invention relates to an adapter for use in releasably attaching a wiper assembly to a wiper arm hook including a top and a bottom with an aperture. The adapter includes a body, a deck, a release tab, a tooth, and a biasing element. The body has sides to accommodate wiper hook. The deck engages the top of the wiper hook. The release tab is spaced from the deck, is disposed between the sides, and extends to a distal end. The tooth depends from the release tab and engages the aperture of the bottom of the wiper hook. The biasing element depends from the release tab, is disposed between the tooth and the distal end, and engages the bottom of the wiper hook such that the release tab is displaced upwardly toward the top of the wiper hook when the tooth engages the aperture of the wiper hook.