diff --git a/2023/src/bin/day08.rs b/2023/src/bin/day08.rs
index 2284286..2426208 100644
--- a/2023/src/bin/day08.rs
+++ b/2023/src/bin/day08.rs
@@ -1,6 +1,6 @@
 #![feature(test)]
 extern crate test;
-use std::collections::HashMap;
+use fnv::FnvHashMap as HashMap;
 
 use aoc2023::{boilerplate, common::*};