diff --git a/src/lib.rs b/src/lib.rs
index eda4eeea5bb5bbf598e987c7f7d261c0c5d4ebda..3eb80ab24a0fe2eabcedb7265643c4b81aa03a17 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -18,6 +18,8 @@
 #![deny(missing_docs)]
 #![deny(warnings)]
 #![feature(const_fn)]
+#![feature(const_unsafe_cell_new)]
+#![feature(const_cell_new)]
 #![feature(get_type_id)]
 #![feature(never_type)]
 #![feature(unsize)]