diff --git a/src/lib.rs b/src/lib.rs
index 515bbcbfd7d8e3558d6f830717895d0c05fca144..bb24db00b43aff95d7119ca640a532a6ab26adad 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -12,7 +12,9 @@
 
 #![deny(missing_docs)]
 #![deny(warnings)]
+#![feature(const_cell_new)]
 #![feature(const_fn)]
+#![feature(const_unsafe_cell_new)]
 #![feature(get_type_id)]
 #![feature(never_type)]
 #![feature(unsize)]