diff --git a/experiments/src/main.rs b/experiments/src/main.rs
index 6e57391..c832e80 100644
--- a/experiments/src/main.rs
+++ b/experiments/src/main.rs
@@ -1,7 +1,6 @@
 #![no_std]
 #![no_main]
 #![feature(naked_functions)]
-#![feature(asm)]
 
 extern crate alloc;
 
diff --git a/libcortex_a9/src/lib.rs b/libcortex_a9/src/lib.rs
index 646aa1a..b124a38 100644
--- a/libcortex_a9/src/lib.rs
+++ b/libcortex_a9/src/lib.rs
@@ -1,7 +1,5 @@
 #![no_std]
 #![feature(never_type)]
-#![feature(asm, global_asm)]
-#![feature(const_fn_trait_bound)]
 
 extern crate alloc;
 
diff --git a/libsupport_zynq/src/lib.rs b/libsupport_zynq/src/lib.rs
index 2e6abf0..04ccc1c 100644
--- a/libsupport_zynq/src/lib.rs
+++ b/libsupport_zynq/src/lib.rs
@@ -1,9 +1,7 @@
 #![no_std]
 
 #![feature(alloc_error_handler)]
-#![feature(panic_info_message)]
 #![feature(naked_functions)]
-#![feature(asm)]
 
 pub extern crate alloc;
 pub extern crate compiler_builtins;