diff --git a/crates/sel4-externally-shared/src/ops/unordered_atomic_ops.rs b/crates/sel4-externally-shared/src/ops/unordered_atomic_ops.rs
index 302c14584..3d44c6fc2 100644
--- a/crates/sel4-externally-shared/src/ops/unordered_atomic_ops.rs
+++ b/crates/sel4-externally-shared/src/ops/unordered_atomic_ops.rs
@@ -10,7 +10,10 @@ use core::mem;
 use core::intrinsics;
 
 use cfg_if::cfg_if;
-use volatile::ops::{BulkOps, Ops, UnitaryOps};
+use volatile::ops::{BulkOps, Ops};
+
+#[cfg(feature = "unstable")]
+use volatile::ops::UnitaryOps;
 
 #[derive(Default, Copy, Clone)]
 pub struct UnorderedAtomicOps(());
diff --git a/hacking/nix/scope/sources.nix b/hacking/nix/scope/sources.nix
index c67d159f2..ff4e7af87 100644
--- a/hacking/nix/scope/sources.nix
+++ b/hacking/nix/scope/sources.nix
@@ -49,28 +49,27 @@ in rec {
   seL4 = {
     rust = fetchGit {
       url = "https://github.com/coliasgroup/seL4.git";
-      rev = "360030019e45adf559c13a98400a7be4e7fb0ab9"; # branch "rust"
+      rev = "2404473ed2e68c8e627cb4d6588bd57633038109"; # branch "rust"
       local = localRoot + "/seL4";
     };
 
     rust-microkit = fetchGit {
       url = "https://github.com/coliasgroup/seL4.git";
-      rev = "7b8c552b36fe13b8a846b06a659c23697b7df926"; # branch "rust-microkit"
+      rev = "5f71dc4a5cd90b823876bec10265da92eae486ab"; # branch "rust-microkit"
       local = localRoot + "/seL4";
     };
 
     rust-sel4test = fetchGit {
       url = "https://github.com/coliasgroup/seL4.git";
-      rev = "85e36760bd158cf12a170450685eb7b0b05d2076"; # rust-sel4test
+      rev = "e1b3a2bfc5f9d122f3cebc5b6f2751b83f0e97ac"; # rust-sel4test
       local = localRoot + "/seL4";
     };
   };
 
   microkit = fetchGit {
     url = "https://github.com/coliasgroup/microkit.git";
-    rev = "1e561e5b11970a3b61167225ebcaf11aa7ad4959"; # branch "rust-nix"
+    rev = "5f7b2da0a6233b4cc763d3dff4451532958a8877"; # branch "rust-nix"
     local = localRoot + "/microkit";
-    # useLocal = true;
   };
 
   capdlTool = fetchGit (capdlCommon // {