diff --git a/src/15.cs b/src/15.cs
index ed22ebe..f9f86ec 100644
--- a/src/15.cs
+++ b/src/15.cs
@@ -43,7 +43,7 @@ internal class Day15 : Day
 
     internal override string Part1()
     {
-        int interestedY = 10;
+        int interestedY = 2000000;
         HashSet<ivec2> emptySpace = new();
         for (int i = 0; i < knownSensors.Count; i++)
         {