diff --git a/entropy/nixos/flake.lock b/entropy/nixos/flake.lock
index d0374ef..2551224 100644
--- a/entropy/nixos/flake.lock
+++ b/entropy/nixos/flake.lock
@@ -7,27 +7,27 @@
         ]
       },
       "locked": {
-        "lastModified": 1689243291,
-        "narHash": "sha256-beD+uY2+Fn5bR1nWzzjikmCQGxnFDePWI0464zi+Dhg=",
+        "lastModified": 1691481252,
+        "narHash": "sha256-hXhh/nVxV1iJADvQem8yMyJCcnZAAOu+3dDTIwtJRrI=",
         "owner": "Feliix42",
         "repo": "mlir.nix",
-        "rev": "02a73472f18be570657a36a57e04244e32f4a471",
+        "rev": "c8d083c1a2d569ff4531dfa2800b3803df104696",
         "type": "github"
       },
       "original": {
         "owner": "Feliix42",
-        "ref": "main",
+        "ref": "circt",
         "repo": "mlir.nix",
         "type": "github"
       }
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1690957133,
-        "narHash": "sha256-0Y4CiOIszhHDDXHFmvHUpmhUotKOIn0m3jpMlm6zUTE=",
+        "lastModified": 1691305349,
+        "narHash": "sha256-0Pig7jnmuRH3c5dOTVTOvTLwo2CRzYTyvJRQ82HWRSo=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "24f9162b26f0debd163f6d94752aa2acb9db395a",
+        "rev": "5426a95071d0b9782b3209b3995cde1f5689616e",
         "type": "github"
       },
       "original": {
@@ -39,11 +39,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1690927903,
-        "narHash": "sha256-D5gCaCROnjEKDOel//8TO/pOP87pAEtT0uT8X+0Bj/U=",
+        "lastModified": 1691421349,
+        "narHash": "sha256-RRJyX0CUrs4uW4gMhd/X4rcDG8PTgaaCQM5rXEJOx6g=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "bd836ac5e5a7358dea73cb74a013ca32864ccb86",
+        "rev": "011567f35433879aae5024fc6ec53f2a0568a6c4",
         "type": "github"
       },
       "original": {
@@ -62,11 +62,11 @@
     },
     "unstable": {
       "locked": {
-        "lastModified": 1690881714,
-        "narHash": "sha256-h/nXluEqdiQHs1oSgkOOWF+j8gcJMWhwnZ9PFabN6q0=",
+        "lastModified": 1691368598,
+        "narHash": "sha256-ia7li22keBBbj02tEdqjVeLtc7ZlSBuhUk+7XTUFr14=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9e1960bc196baf6881340d53dccb203a951745a2",
+        "rev": "5a8e9243812ba528000995b294292d3b5e120947",
         "type": "github"
       },
       "original": {
diff --git a/entropy/nixos/flake.nix b/entropy/nixos/flake.nix
index dc28717..56dc4d2 100644
--- a/entropy/nixos/flake.nix
+++ b/entropy/nixos/flake.nix
@@ -10,8 +10,8 @@
       #inputs.nixpkgs.follows = "nixpkgs";
     #};
     mlir = {
-      url = "github:Feliix42/mlir.nix/main";
-      #url = "github:Feliix42/mlir.nix/circt";
+      #url = "github:Feliix42/mlir.nix/main";
+      url = "github:Feliix42/mlir.nix/circt";
       inputs.nixpkgs.follows = "nixpkgs";
     };
   };