diff --git a/src/lib.rs b/src/lib.rs
index 62049a6..1a3ef54 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,6 @@
 #![feature(let_chains)]
 #![feature(decl_macro)]
+#![feature(iter_array_chunks)]
 
 pub mod days;
 pub mod utils;