diff --git a/flake.lock b/flake.lock
index 7ad0037..886e08e 100644
--- a/flake.lock
+++ b/flake.lock
@@ -3,11 +3,11 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1673956053,
-        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
         "type": "github"
       },
       "original": {
@@ -17,12 +17,15 @@
       }
     },
     "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
       "locked": {
-        "lastModified": 1659877975,
-        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
+        "lastModified": 1705309234,
+        "narHash": "sha256-uNRRNRKmJyCRC/8y1RqBkqWBLM034y4qN7EprSdmgyA=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
+        "rev": "1ef2e671c3b0c19053962c07dbda38332dcebf26",
         "type": "github"
       },
       "original": {
@@ -33,16 +36,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1702350026,
-        "narHash": "sha256-A+GNZFZdfl4JdDphYKBJ5Ef1HOiFsP18vQe9mqjmUis=",
+        "lastModified": 1708161998,
+        "narHash": "sha256-6KnemmUorCvlcAvGziFosAVkrlWZGIc6UNT9GUYr0jQ=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9463103069725474698139ab10f17a9d125da859",
+        "rev": "84d981bae8b5e783b3b548de505b22880559515f",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-23.05",
+        "ref": "nixos-23.11",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -53,6 +56,21 @@
         "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 1d4c38f..e535fa6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "Zig compiler binaries.";
 
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
     flake-utils.url = "github:numtide/flake-utils";
 
     # Used for shell.nix
diff --git a/templates/compiler-dev/flake.lock b/templates/compiler-dev/flake.lock
index 156ee6f..1c5a2c8 100644
--- a/templates/compiler-dev/flake.lock
+++ b/templates/compiler-dev/flake.lock
@@ -3,11 +3,11 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1673956053,
-        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
         "type": "github"
       },
       "original": {
@@ -21,11 +21,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1681202837,
-        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
         "type": "github"
       },
       "original": {
@@ -36,11 +36,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1684393889,
-        "narHash": "sha256-X4EP3TdpskELgOKGfm7UcLLGheqxYJZuNEEc0HkmrO0=",
+        "lastModified": 1715161350,
+        "narHash": "sha256-5ZU8DVwHO0gjw2sKoKkToYOXMJFRBpRsa17Ebm8fgj0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "9f7d9a55cc9960c029b006444e64e8dfa54a578e",
+        "rev": "c4200cb341ee794775185ecd4105fbbfb5ca73a0",
         "type": "github"
       },
       "original": {
diff --git a/templates/compiler-dev/flake.nix b/templates/compiler-dev/flake.nix
index 6acda35..3d25004 100644
--- a/templates/compiler-dev/flake.nix
+++ b/templates/compiler-dev/flake.nix
@@ -33,7 +33,7 @@
               wasmtime
               zlib
             ]
-            ++ (with llvmPackages_16; [
+            ++ (with llvmPackages_18; [
               clang
               clang-unwrapped
               lld