diff --git a/flake.lock b/flake.lock
index 21f8a55..9e056fc 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,5 +1,21 @@
 {
   "nodes": {
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "locked": {
         "lastModified": 1667395993,
@@ -53,11 +69,11 @@
     "known-folders": {
       "flake": false,
       "locked": {
-        "lastModified": 1659425144,
-        "narHash": "sha256-xMgdOKwWqBmw7avcioqQQrrPU1MjzlBMtNjqPfOEtDQ=",
+        "lastModified": 1672993516,
+        "narHash": "sha256-PG0dyaAZyLsEqo38HQ59r40eXnlqrmsBoXjDRmteQuw=",
         "owner": "ziglibs",
         "repo": "known-folders",
-        "rev": "24845b0103e611c108d6bc334231c464e699742c",
+        "rev": "6b37490ac7285133bf09441850b8102c9728a776",
         "type": "github"
       },
       "original": {
@@ -68,11 +84,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1672057183,
-        "narHash": "sha256-GN7/10DNNvs1FPj9tlZA2qgNdFuYKKuS3qlHTqAxasQ=",
+        "lastModified": 1675523619,
+        "narHash": "sha256-jHvkAwkbAj1s0O5riHMghSDHh9iz8AwLTbXQuVQKQcg=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "b139e44d78c36c69bcbb825b20dbfa51e7738347",
+        "rev": "5a211d5e8d18b20b5a2b22157266cc00f8c4f3b9",
         "type": "github"
       },
       "original": {
@@ -95,11 +111,11 @@
     "tres": {
       "flake": false,
       "locked": {
-        "lastModified": 1672008284,
-        "narHash": "sha256-AtM9SV56PEud1MfbKDZMU2FlsNrI46PkcFQh3yMcDX0=",
+        "lastModified": 1672378490,
+        "narHash": "sha256-SH2ajnLeQFv/anUbv8PppdIR80Jh6QUAkDPs05RIXXc=",
         "owner": "ziglibs",
         "repo": "tres",
-        "rev": "16774b94efa61757a5302a690837dfb8cf750a11",
+        "rev": "cd1c321a86225569e3bab1b81f897626af538a5e",
         "type": "github"
       },
       "original": {
@@ -110,17 +126,18 @@
     },
     "zig-overlay": {
       "inputs": {
+        "flake-compat": "flake-compat",
         "flake-utils": "flake-utils_2",
         "nixpkgs": [
           "nixpkgs"
         ]
       },
       "locked": {
-        "lastModified": 1672142864,
-        "narHash": "sha256-uXljuSZK8DP5c4o9u+gcF+Yc3dKYH1wsHmDpWcFBVRQ=",
+        "lastModified": 1675556800,
+        "narHash": "sha256-OfruD3OiVbeQZrcrr/4iFo3Xv7mQkO7HYS+TcTNYY9E=",
         "owner": "mitchellh",
         "repo": "zig-overlay",
-        "rev": "16e9191142d2a13d7870c03e500842321a466a74",
+        "rev": "778b043b184d53b656b4812ddc41a37f29a51a4d",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 4a44b2e..332e06c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -38,7 +38,7 @@
           dontInstall = true;
           buildPhase = ''
             mkdir -p $out
-            zig build install -Dcpu=baseline -Drelease-safe=true -Ddata_version=master -Dtres=${tres}/tres.zig -Dknown-folders=${known-folders}/known-folders.zig --prefix $out
+            zig build install -Dcpu=baseline -Doptimize=ReleaseSafe -Ddata_version=master -Dtres=${tres}/tres.zig -Dknown-folders=${known-folders}/known-folders.zig --prefix $out
           '';
           XDG_CACHE_HOME = ".cache";
         };