Preheat the oven.

Mix graham cracker crumbs, melted butter, and sugar in a bowl and press into the bottom of a springform pan.

In a separate bowl, beat cream cheese, sour cream, and sugar until smooth.

Add eggs one at a time, mixing well after each addition, and then add vanilla extract.

Gently fold in blueberries and pour the mixture onto the crust.

In another bowl, combine oats, flour, brown sugar, and cold butter to make the crumble.

Sprinkle the crumble mixture over the cheesecake batter.

Bake in the oven for 70 minutes or until set.

Allow to cool before serving.