diff --git a/flake.lock b/flake.lock
index 73f7180..46bd01d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -38,16 +38,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1688392541,
-        "narHash": "sha256-lHrKvEkCPTUO+7tPfjIcb7Trk6k31rz18vkyqmkeJfY=",
+        "lastModified": 1704290814,
+        "narHash": "sha256-LWvKHp7kGxk/GEtlrGYV68qIvPHkU9iToomNFGagixU=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "ea4c80b39be4c09702b0cb3b42eab59e2ba4f24b",
+        "rev": "70bdadeb94ffc8806c0570eb5c2695ad29f0e421",
         "type": "github"
       },
       "original": {
         "id": "nixpkgs",
-        "ref": "nixos-22.11",
+        "ref": "nixos-23.05",
         "type": "indirect"
       }
     },
diff --git a/flake.nix b/flake.nix
index 1c57853..8ec6dd4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,7 +1,7 @@
 {
   description = "Finite Difference Time Domain simulation binaries";
   inputs = {
-    nixpkgs.url = "nixpkgs/nixos-22.11";
+    nixpkgs.url = "nixpkgs/nixos-23.05";
     flake-utils.url = "github:numtide/flake-utils";
     rust-overlay.url = "github:oxalica/rust-overlay/319f57cd2c34348c55970a4bf2b35afe82088681";  #< 2023-12-30 (TODO: update/un- pin)
   };