diff --git a/src/day15.rs b/src/day15.rs
index 377cd59..9de00c6 100644
--- a/src/day15.rs
+++ b/src/day15.rs
@@ -1,5 +1,4 @@
 use aoc_runner_derive::{aoc, aoc_generator};
-use std::collections::HashMap;
 type Data = Vec<usize>;
 
 #[derive(Debug,Clone)]