diff --git a/.gitignore b/.gitignore
index 4c82b07..d8c8979 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
-zig-cache
+.zig-cache
 zig-out
diff --git a/build.zig b/build.zig
index 840a578..6e62613 100644
--- a/build.zig
+++ b/build.zig
@@ -6,7 +6,7 @@ pub fn build(b: *std.Build) void {
     const add_paths = b.option(bool, "add-paths", "add macos SDK paths from dependency") orelse false;
 
     const objc = b.addModule("objc", .{
-        .root_source_file = .{ .path = "src/main.zig" },
+        .root_source_file = b.path("src/main.zig"),
         .target = target,
         .optimize = optimize,
     });
@@ -16,7 +16,7 @@ pub fn build(b: *std.Build) void {
 
     const tests = b.addTest(.{
         .name = "objc-test",
-        .root_source_file = .{ .path = "src/main.zig" },
+        .root_source_file = b.path("src/main.zig"),
         .target = target,
         .optimize = optimize,
     });
diff --git a/flake.lock b/flake.lock
index 923bacf..86045da 100644
--- a/flake.lock
+++ b/flake.lock
@@ -19,11 +19,11 @@
     "flake-compat_2": {
       "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": {
@@ -48,12 +48,15 @@
       }
     },
     "flake-utils_2": {
+      "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": {
@@ -64,32 +67,32 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1688141187,
-        "narHash": "sha256-MTeum0f3Hz5yss2aoIAIjnx/SKg6PqMUd3ishL8awKU=",
+        "lastModified": 1717895720,
+        "narHash": "sha256-Dl6JKx1rIDEuv4q9rtlt9QwyerSQbrk1bUtNHzx9bIY=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "2847fac7f4f0d614ba9efd624eb93c2da8173898",
+        "rev": "0e0826ec06d2b3db8e28e280d68179f022b1d160",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "release-23.05",
+        "ref": "release-24.05",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "nixpkgs_2": {
       "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"
       }
@@ -102,6 +105,21 @@
         "zig": "zig"
       }
     },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "zig": {
       "inputs": {
         "flake-compat": "flake-compat_2",
@@ -109,11 +127,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1712923708,
-        "narHash": "sha256-gx0nOU67FBJ6S4S2VtnahhSHW9CW8zsYzE616/NV4eo=",
+        "lastModified": 1717848532,
+        "narHash": "sha256-d+xIUvSTreHl8pAmU1fnmkfDTGQYCn2Rb/zOwByxS2M=",
         "owner": "mitchellh",
         "repo": "zig-overlay",
-        "rev": "c4412eedbfed081eefd5120c85e7910a953ae818",
+        "rev": "02fc5cc555fc14fda40c42d7c3250efa43812b43",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index 69591c9..d8072a6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "Objective-C runtime bindings for Zig";
 
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/release-23.05";
+    nixpkgs.url = "github:nixos/nixpkgs/release-24.05";
     flake-utils.url = "github:numtide/flake-utils";
     zig.url = "github:mitchellh/zig-overlay";
 
@@ -35,7 +35,7 @@
       in rec {
         devShells.default = pkgs.mkShell {
           nativeBuildInputs = with pkgs; [
-            zigpkgs.master
+            zigpkgs."0.13.0"
           ];
         };