diff --git a/Sources/09/09.swift b/Sources/09/09.swift
index 055cf8c..15883c3 100644
--- a/Sources/09/09.swift
+++ b/Sources/09/09.swift
@@ -7,7 +7,6 @@
 
 import Foundation
 import Runner
-import Collections
 
 struct Coord: Hashable {
     let row: Int