diff --git a/src/main.zig b/src/main.zig
index 12077fe..cd86537 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -3,10 +3,10 @@ const std = @import("std");
 const day = @import("day");
 
 pub fn main() !void {
-    var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
-    defer arena.deinit();
+    var gpa: std.heap.DebugAllocator(.{}) = .init;
+    defer std.debug.assert(gpa.deinit() == .ok);
 
-    const allocator = arena.allocator();
+    const allocator = gpa.allocator();
 
     std.debug.print("{s}\n", .{day.title});
     try day.run(allocator);