Preheat oven to 375 degrees Fahrenheit.

Combine sliced apples, cranberries, brown sugar, flour, cinnamon, salt, and lemon juice in a large bowl. Toss until the apples and cranberries are evenly coated. Pour into graham cracker crust.

Combine crumble topping in a bowl and sprinkle over the pie. Bake for 35 to 40 minutes or until the top is golden brown.