diff --git a/Sources/07/07.swift b/Sources/07/07.swift
index d66d5a0..ff93f04 100644
--- a/Sources/07/07.swift
+++ b/Sources/07/07.swift
@@ -30,8 +30,8 @@ struct Day07: Runnable {
     
     func runB(horizontalPositions: [Int]) {
         let average = Double(horizontalPositions.reduce(0, +)) / Double(horizontalPositions.count)
-        let roundedDown = Int(floor(average))
-        let roundedUp = Int(ceil(average))
+        let roundedDown = Int(average.rounded(.up))
+        let roundedUp = Int(average.rounded(.down))
         let fuelForRoundedDown = fuelConsumptionFor(horizontalPositions: horizontalPositions, toPosition: roundedDown)
         let fuelForRoundedUp = fuelConsumptionFor(horizontalPositions: horizontalPositions, toPosition: roundedUp)
         print(min(fuelForRoundedDown, fuelForRoundedUp))