diff --git a/substrate/substrate/pwasm-alloc/src/lib.rs b/substrate/substrate/pwasm-alloc/src/lib.rs
index 3cb2ae662e..7dbfb562a9 100644
--- a/substrate/substrate/pwasm-alloc/src/lib.rs
+++ b/substrate/substrate/pwasm-alloc/src/lib.rs
@@ -2,8 +2,6 @@
 #![cfg_attr(feature = "strict", deny(warnings))]
 #![no_std]
 #![crate_type = "rlib"]
-#![cfg_attr(feature = "nightly", feature(alloc))]
-#![cfg_attr(feature = "nightly", feature(allocator_api))]
 
 //! Custom allocator crate for wasm