diff --git a/flake.lock b/flake.lock
index e3a6987..162a98a 100644
--- a/flake.lock
+++ b/flake.lock
@@ -20,24 +20,6 @@
         "type": "github"
       }
     },
-    "flake-utils": {
-      "inputs": {
-        "systems": "systems"
-      },
-      "locked": {
-        "lastModified": 1705309234,
-        "narHash": "sha256-uNRRNRKmJyCRC/8y1RqBkqWBLM034y4qN7EprSdmgyA=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "1ef2e671c3b0c19053962c07dbda38332dcebf26",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1715447595,
@@ -62,18 +44,13 @@
       }
     },
     "rust-overlay": {
-      "inputs": {
-        "flake-utils": "flake-utils",
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
+      "flake": false,
       "locked": {
-        "lastModified": 1715480255,
-        "narHash": "sha256-gEZl8nYidQwqJhOigJ91JDjoBFoPEWVsd82AKnaE7Go=",
+        "lastModified": 1725243956,
+        "narHash": "sha256-0A5ZP8uDCyBdYUzayZfy6JFdTefP79oZVAjyqA/yuSI=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "d690205a4f01ec0930303c4204e5063958e51255",
+        "rev": "a10c8092d5f82622be79ed4dd12289f72011f850",
         "type": "github"
       },
       "original": {
@@ -81,21 +58,6 @@
         "repo": "rust-overlay",
         "type": "github"
       }
-    },
-    "systems": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
     }
   },
   "root": "root",
diff --git a/flake.nix b/flake.nix
index bacde53..585a055 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,7 +3,7 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     rust-overlay.url = "github:oxalica/rust-overlay";
-    rust-overlay.inputs.nixpkgs.follows = "nixpkgs";
+    rust-overlay.flake = false;
     crane.url = "github:ipetkov/crane";
     crane.inputs.nixpkgs.follows = "nixpkgs";
   };
diff --git a/nix/modules/flake-module.nix b/nix/modules/flake-module.nix
index 055544b..03cf519 100644
--- a/nix/modules/flake-module.nix
+++ b/nix/modules/flake-module.nix
@@ -81,7 +81,7 @@ in
         config = {
           # See nix/modules/nixpkgs.nix (the user must import it)
           nixpkgs.overlays = [
-            rustFlakeInputs.rust-overlay.overlays.default
+            (import rustFlakeInputs.rust-overlay)
           ];
 
           # lib.mapAttrs over config.rust-project.crates returning its outputs.packages (combined)