Stephen Colletti and Alex Weaver are waking their dreams.

Nearly two years after the Laguna Beach alum proposed to the NASCAR reporter , the couple has officially tied the knot.

In a joint Oct. 3 Instagram post , Alex—donning a white high-neck Nadine Merabi mini dress adorned with pearls—was all smiles as she walked down the steps of a brick building with Stephen by her side.

Meanwhile, the One Tree Hill actor opted for a black suit paired with a white button-down shirt, the top button of which was left undone. Letting the photo speak for itself, t he caption simply read, with a white heart emoji, "Mr. & Mrs."

And Stephen's high school pals couldn't help but gush over the milestone, with The Hills alum Lauren Conrad commenting, "So

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