diff --git a/flake.lock b/flake.lock
index 77f3f74..5e0dfee 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,12 +1,15 @@
 {
   "nodes": {
     "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
       "locked": {
-        "lastModified": 1659877975,
-        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
+        "lastModified": 1694529238,
+        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
+        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
         "type": "github"
       },
       "original": {
@@ -17,15 +20,18 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1660318005,
-        "narHash": "sha256-g9WCa9lVUmOV6dYRbEPjv/TLOR5hamjeCcKExVGS3OQ=",
-        "path": "/nix/store/59ia3rny8hq7ckvdsrid73zy22dfxgmj-source",
-        "rev": "5c211b47aeadcc178c5320afd4e74c7eed5c389f",
-        "type": "path"
+        "lastModified": 1699596684,
+        "narHash": "sha256-XSXP8zjBZJBVvpNb2WmY0eW8O2ce+sVyj1T0/iBRIvg=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "da4024d0ead5d7820f6bd15147d3fe2a0c0cec73",
+        "type": "github"
       },
       "original": {
-        "id": "nixpkgs",
-        "type": "indirect"
+        "owner": "NixOS",
+        "ref": "nixos-23.05",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "root": {
@@ -33,6 +39,21 @@
         "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs"
       }
+    },
+    "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 4a0d69c..6958459 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "honggfuzz-rs: Fuzz your Rust code with Google-developed Honggfuzz !";
 
   inputs = {
-    nixpkgs.url = "nixpkgs";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
 
     flake-utils.url = "github:numtide/flake-utils";
   };