diff --git a/flake.lock b/flake.lock
index cf01a23..ec510fb 100644
--- a/flake.lock
+++ b/flake.lock
@@ -85,6 +85,24 @@
         "type": "github"
       }
     },
+    "flake-utils_2": {
+      "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"
+      }
+    },
     "libgit2": {
       "flake": false,
       "locked": {
@@ -120,7 +138,7 @@
       },
       "original": {
         "type": "tarball",
-        "url": "https://flakehub.com/f/NixOS/nix/~2.22.1.tar.gz"
+        "url": "https://flakehub.com/f/NixOS/nix/2.20.tar.gz"
       }
     },
     "nixpkgs": {
@@ -212,16 +230,17 @@
     },
     "rust-overlay": {
       "inputs": {
+        "flake-utils": "flake-utils_2",
         "nixpkgs": [
           "nixpkgs"
         ]
       },
       "locked": {
-        "lastModified": 1723083652,
-        "narHash": "sha256-ait+SeO67n8b3lIaBWwuzVX6F1zyTJ0cY6cHWtvhTyc=",
+        "lastModified": 1716862669,
+        "narHash": "sha256-7oTPM9lcdwiI1cpRC313B+lHawocgpY5F07N+Rbm5Uk=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "69e0ad9289fc08ee5a313fb107f00e0f21e7cbb2",
+        "rev": "47b2d15658b37716393b2463a019000dbd6ce4bc",
         "type": "github"
       },
       "original": {
@@ -229,6 +248,21 @@
         "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 cc29767..0eb1d20 100644
--- a/flake.nix
+++ b/flake.nix
@@ -16,7 +16,7 @@
 
     flake-compat.url = "https://flakehub.com/f/edolstra/flake-compat/1.0.1.tar.gz";
 
-    nix.url = "https://flakehub.com/f/NixOS/nix/~2.22.1.tar.gz";
+    nix.url = "https://flakehub.com/f/NixOS/nix/2.20.tar.gz";
   };
 
   outputs = { self, nixpkgs, nix, ... }@inputs: