diff --git a/flake.lock b/flake.lock
index 7f89359..179f46e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -113,11 +113,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1744684506,
-        "narHash": "sha256-pDPDMT1rdkTWi8MIoZ67gT3L817R7P0Jo+PP+BrnyJI=",
+        "lastModified": 1774321696,
+        "narHash": "sha256-g18xMjMNla/nsF5XyQCNyWmtb2UlZpkY0XE8KinIXAA=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "47beae969336c05e892e1e4a9dbaac9593de34ab",
+        "rev": "49a67e6894d4cb782842ee6faa466aa90c92812d",
         "type": "github"
       },
       "original": {
diff --git a/nix/pkgs/rust.nix b/nix/pkgs/rust.nix
index 4c3024f..6cb9281 100644
--- a/nix/pkgs/rust.nix
+++ b/nix/pkgs/rust.nix
@@ -8,9 +8,9 @@
 let
   inherit (pkgs) lib stdenv;
   src = ../../.;
-  rustToolchainFile = builtins.fromTOML (builtins.readFile ../../rust-toolchain.toml);
-  rustChannel = rustToolchainFile.toolchain.channel;
-  craneLib = (crane.mkLib pkgs).overrideToolchain (pkgs.rust-bin.stable.${rustChannel}.default);
+  craneLib = (crane.mkLib pkgs).overrideToolchain (
+    pkgs.rust-bin.fromRustupToolchainFile ../../rust-toolchain.toml
+  );
   commonDeps = {
     nativeBuildInputs = with pkgs; [
       pkg-config