diff --git a/.github/workflows/burrito-xcomp-check.yaml b/.github/workflows/burrito-xcomp-check.yaml
index 56f3586..8c08a2b 100644
--- a/.github/workflows/burrito-xcomp-check.yaml
+++ b/.github/workflows/burrito-xcomp-check.yaml
@@ -20,7 +20,7 @@ jobs:
           elixir-version: 1.16.2
       - uses: goto-bus-stop/setup-zig@v2
         with:
-          version: 0.11.0
+          version: 0.13.0
       - name: Set up Homebrew
         if: matrix.host == 'macos-latest'
         id: set-up-homebrew
diff --git a/.gitignore b/.gitignore
index cd5e306..ba1d729 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,6 +32,7 @@ Temporary Items
 
 zig-cache/
 zig-out/
+**.zig-cache/**
 build-*/
 docgen_tmp/
 
@@ -51,4 +52,5 @@ erl_crash.dump
 *.beam
 /config/*.secret.exs
 .elixir_ls/
-**/burrito_out/**
\ No newline at end of file
+**/burrito_out/**
+
diff --git a/.tool-versions b/.tool-versions
index f9613a9..425b8df 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
-zig 0.11.0
-erlang 26.1.2
-elixir 1.15.6-otp-26
+zig 0.13.0
+erlang 26.2.2
+elixir 1.16.1-otp-26
diff --git a/README.md b/README.md
index 92124ef..0cecce9 100644
--- a/README.md
+++ b/README.md
@@ -110,7 +110,7 @@ We support _targeting_ Windows (x86_64) from MacOS and Linux, we _do not_ offici
 
 You must have the following installed and in your PATH:
 
-* Zig (0.11.0) -- `zig`
+* Zig (0.13.0) -- `zig`
 * XZ -- `xz`
 * 7z -- `7z` (For Windows Targets)
 
diff --git a/bin/fetch_zig.sh b/bin/fetch_zig.sh
index bce047a..9abca27 100755
--- a/bin/fetch_zig.sh
+++ b/bin/fetch_zig.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-ZIG_VERSION="0.11.0"
+ZIG_VERSION="0.13.0"
 
 ####
 
diff --git a/build.zig b/build.zig
index 48768f6..2bf1c31 100644
--- a/build.zig
+++ b/build.zig
@@ -8,15 +8,13 @@ const builtin = @import("builtin");
 
 const log = std.log;
 
-const Builder = std.build.Builder;
+const Builder = std.Build;
 const CrossTarget = std.zig.CrossTarget;
 const Mode = std.builtin.Mode;
 const LibExeObjStep = std.build.LibExeObjStep;
 
 var builder: *Builder = undefined;
-var target: *const CrossTarget = undefined;
-
-var wrapper_exe: *LibExeObjStep = undefined;
+var wrapper_exe: *Builder.Step.Compile = undefined;
 
 // Memory allocator
 var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
@@ -26,7 +24,6 @@ pub fn build(b: *Builder) !void {
     log.info("Zig is building an Elixir binary... ⚡", .{});
 
     builder = b;
-    target = &builder.standardTargetOptions(.{});
 
     // Run build steps!
     _ = try run_archiver();
@@ -42,9 +39,9 @@ pub fn run_archiver() !void {
     try foilz.pack_directory(release_path, "./payload.foilz");
 
     if (builtin.os.tag == .windows) {
-        _ = builder.exec(&[_][]const u8{ "cmd", "/C", "xz -9ez --check=crc32 --stdout --keep payload.foilz > src/payload.foilz.xz" });
+        _ = builder.run(&[_][]const u8{ "cmd", "/C", "xz -9ez --check=crc32 --stdout --keep payload.foilz > src/payload.foilz.xz" });
     } else {
-        _ = builder.exec(&[_][]const u8{ "/bin/sh", "-c", "xz -9ez --check=crc32 --stdout --keep payload.foilz > src/payload.foilz.xz" });
+        _ = builder.run(&[_][]const u8{ "/bin/sh", "-c", "xz -9ez --check=crc32 --stdout --keep payload.foilz > src/payload.foilz.xz" });
     }
 }
 
@@ -64,18 +61,19 @@ pub fn build_wrapper() !void {
     var file = try std.fs.cwd().openFile("payload.foilz", .{});
     defer file.close();
     const uncompressed_size = try file.getEndPos();
+    const target = builder.standardTargetOptions(.{});
 
     wrapper_exe = builder.addExecutable(.{
         .name = release_name,
         // In this case the main source file is merely a path, however, in more
         // complicated build scripts, this could be a generated file.
-        .root_source_file = .{ .path = "src/wrapper.zig" },
-        .target = target.*,
+        .root_source_file = builder.path("src/wrapper.zig"),
+        .target = target,
         .optimize = opt_level,
     });
 
     const exe_options = builder.addOptions();
-    wrapper_exe.addOptions("build_options", exe_options);
+    wrapper_exe.root_module.addOptions("build_options", exe_options);
 
     exe_options.addOption([]const u8, "RELEASE_NAME", release_name);
     exe_options.addOption(u64, "UNCOMPRESSED_SIZE", uncompressed_size);
@@ -83,8 +81,8 @@ pub fn build_wrapper() !void {
     exe_options.addOption(bool, "IS_PROD", std.mem.eql(u8, is_prod, "1"));
     exe_options.addOption([]const u8, "MUSL_RUNTIME_PATH", musl_runtime_path);
 
-    if (target.isWindows()) {
-        wrapper_exe.addIncludePath(.{ .path = "src/" });
+    if (target.result.os.tag == .windows) {
+        wrapper_exe.addIncludePath(builder.path("src/"));
     }
 
     // Link standard C libary to the wrapper
@@ -92,22 +90,21 @@ pub fn build_wrapper() !void {
 
     if (plugin_path) |plugin| {
         log.info("Plugin found! {s} 🔌", .{plugin});
-
-        const plugin_module = builder.createModule(.{
-            .source_file = .{ .path = plugin },
+        const plug_mod = builder.addModule("burrito_plugin", .{
+            .root_source_file = .{ .cwd_relative = plugin },
         });
-        wrapper_exe.addModule("burrito_plugin", plugin_module);
+        wrapper_exe.root_module.addImport("burrito_plugin", plug_mod);
     } else {
-        const plugin_module = builder.createModule(.{
-            .source_file = .{ .path = "_dummy_plugin.zig" },
+        const plug_mod = builder.addModule("burrito_plugin", .{
+            .root_source_file = builder.path("_dummy_plugin.zig"),
         });
-        wrapper_exe.addModule("burrito_plugin", plugin_module);
+        wrapper_exe.root_module.addImport("burrito_plugin", plug_mod);
     }
 
-    wrapper_exe.addIncludePath(.{ .path = "src/xz" });
-    wrapper_exe.addCSourceFile(.{ .file = .{ .path = "src/xz/xz_crc32.c" }, .flags = &[0][]const u8{} });
-    wrapper_exe.addCSourceFile(.{ .file = .{ .path = "src/xz/xz_dec_lzma2.c" }, .flags = &[0][]const u8{} });
-    wrapper_exe.addCSourceFile(.{ .file = .{ .path = "src/xz/xz_dec_stream.c" }, .flags = &[0][]const u8{} });
+    wrapper_exe.addIncludePath(builder.path("src/xz"));
+    wrapper_exe.addCSourceFile(.{ .file = builder.path("src/xz/xz_crc32.c") });
+    wrapper_exe.addCSourceFile(.{ .file = builder.path("src/xz/xz_dec_lzma2.c") });
+    wrapper_exe.addCSourceFile(.{ .file = builder.path("src/xz/xz_dec_stream.c") });
 
     builder.installArtifact(wrapper_exe);
 }
diff --git a/examples/only_one/plugin/file_check.zig b/examples/only_one/plugin/file_check.zig
index 4d977cc..e176b3d 100644
--- a/examples/only_one/plugin/file_check.zig
+++ b/examples/only_one/plugin/file_check.zig
@@ -6,10 +6,10 @@ pub fn burrito_plugin_entry(install_dir: []const u8, program_manifest_json: []co
     std.debug.print("Install Dir: {s}\n", .{install_dir});
     std.debug.print(": {s}\n", .{program_manifest_json});
 
-    var exists = if (std.fs.cwd().access("only_one.lock", .{ .mode = File.OpenMode.read_only })) true else |_| false;
+    const exists = if (std.fs.cwd().access("only_one.lock", .{ .mode = File.OpenMode.read_only })) true else |_| false;
 
     if (exists) {
         std.log.err("We found a lockfile! Can't run two of this application at one!\n", .{});
-        std.os.exit(1);
+        std.process.exit(0);
     }
 }
diff --git a/lib/burrito.ex b/lib/burrito.ex
index daeacd5..e708e28 100644
--- a/lib/burrito.ex
+++ b/lib/burrito.ex
@@ -2,7 +2,7 @@ defmodule Burrito do
   alias Burrito.Builder
   alias Burrito.Builder.Log
 
-  @zig_version_expected %Version{major: 0, minor: 11, patch: 0}
+  @zig_version_expected %Version{major: 0, minor: 13, patch: 0}
 
   @spec wrap(Mix.Release.t()) :: Mix.Release.t()
   def wrap(%Mix.Release{} = release) do
diff --git a/src/archiver.zig b/src/archiver.zig
index 522cfa6..973d39b 100644
--- a/src/archiver.zig
+++ b/src/archiver.zig
@@ -54,7 +54,7 @@ pub fn pack_directory(path: []const u8, archive_path: []const u8) anyerror!void
     const arch_file = try fs.cwd().openFile(archive_path, .{ .mode = .read_write });
     const foilz_writer = fs.File.writer(arch_file);
 
-    var dir = try fs.openIterableDirAbsolute(path, .{ .access_sub_paths = true });
+    var dir = try fs.openDirAbsolute(path, .{ .access_sub_paths = true, .iterate = true });
     var walker = try dir.walk(allocator);
 
     var count: u32 = 0;
@@ -80,7 +80,7 @@ pub fn pack_directory(path: []const u8, archive_path: []const u8) anyerror!void
             // Allocate memory for the file
             var file_arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
             defer file_arena.deinit();
-            var file_allocator = file_arena.allocator();
+            const file_allocator = file_arena.allocator();
 
             // Read the file
             const file_buffer = try file.readToEndAlloc(file_allocator, MAX_READ_SIZE);
@@ -113,13 +113,13 @@ pub fn write_magic_number(foilz_writer: *const fs.File.Writer) !void {
 }
 
 pub fn write_file_record(foilz_writer: *const fs.File.Writer, name: []const u8, data: []const u8, mode: usize) !void {
-    _ = try foilz_writer.writeInt(u64, name.len, .Little);
+    _ = try foilz_writer.writeInt(u64, name.len, .little);
     _ = try foilz_writer.write(name);
-    _ = try foilz_writer.writeInt(u64, data.len, .Little);
+    _ = try foilz_writer.writeInt(u64, data.len, .little);
     if (data.len > 0) {
         _ = try foilz_writer.write(data);
     }
-    _ = try foilz_writer.writeInt(usize, mode, .Little);
+    _ = try foilz_writer.writeInt(usize, mode, .little);
 }
 
 pub fn validate_magic(first_bytes: []const u8) bool {
@@ -169,23 +169,23 @@ pub fn unpack_files(data: []const u8, dest_path: []const u8, uncompressed_size:
     while (cursor < decompressed.len - 5) {
         //////
         // Read the file name
-        var string_len = std.mem.readIntSliceLittle(u64, decompressed[cursor .. cursor + @sizeOf(u64)]);
+        const string_len = std.mem.readInt(u64, decompressed[cursor .. cursor + @sizeOf(u64)][0..8], .little);
         cursor = cursor + @sizeOf(u64);
 
-        var file_name = decompressed[cursor .. cursor + string_len];
+        const file_name = decompressed[cursor .. cursor + string_len];
         cursor = cursor + string_len;
 
         //////
         // Read the file data from the payload
-        var file_len = std.mem.readIntSliceLittle(u64, decompressed[cursor .. cursor + @sizeOf(u64)]);
+        const file_len = std.mem.readInt(u64, decompressed[cursor .. cursor + @sizeOf(u64)][0..8], .little);
         cursor = cursor + @sizeOf(u64);
 
-        var file_data = decompressed[cursor .. cursor + file_len];
+        const file_data = decompressed[cursor .. cursor + file_len];
         cursor = cursor + file_len;
 
         //////
         // Read the mode for this file
-        var file_mode = std.mem.readIntSliceLittle(usize, decompressed[cursor .. cursor + @sizeOf(usize)]);
+        const file_mode = std.mem.readInt(usize, decompressed[cursor .. cursor + @sizeOf(usize)][0..@sizeOf(usize)], .little);
         cursor = cursor + @sizeOf(usize);
 
         //////
@@ -229,15 +229,23 @@ fn create_dirs(dest_path: []const u8, sub_dir_names: []const u8, allocator: std.
 
     while (iterator.next()) |sub_dir| {
         full_dir_path = try fs.path.join(allocator, &[_][]const u8{ full_dir_path, sub_dir.name });
-        os.mkdir(full_dir_path, 0o755) catch {};
+        fs.makeDirAbsolute(full_dir_path) catch |err| {
+            switch (err) {
+                error.PathAlreadyExists => {
+                    log.debug("Directory Exists: {s}", .{full_dir_path});
+                    continue;
+                },
+                else => return err,
+            }
+        };
+        log.debug("Created Directory: {s}", .{full_dir_path});
     }
 }
 
 // Adapted from `std.log`, but without forcing a newline
 fn direct_log(comptime message: []const u8, args: anytype) void {
-    const stderrLock = std.debug.getStderrMutex();
-    stderrLock.lock();
-    defer stderrLock.unlock();
+    std.debug.lockStdErr();
+    defer std.debug.unlockStdErr();
     const stderr = std.io.getStdErr().writer(); // Using the same IO as `std.log`
     nosuspend stderr.print(message, args) catch return;
 }
diff --git a/src/erlang_launcher.zig b/src/erlang_launcher.zig
index fece4c4..1218045 100644
--- a/src/erlang_launcher.zig
+++ b/src/erlang_launcher.zig
@@ -21,7 +21,7 @@ fn get_erl_exe_name() []const u8 {
 
 pub fn launch(install_dir: []const u8, env_map: *EnvMap, meta: *const MetaStruct, args_trimmed: []const []const u8) !void {
     var arena = std.heap.ArenaAllocator.init(std.heap.page_allocator);
-    var allocator = arena.allocator();
+    const allocator = arena.allocator();
 
     // Computer directories we care about
     const release_cookie_path = try fs.path.join(allocator, &[_][]const u8{ install_dir, "releases", "COOKIE" });
@@ -71,7 +71,7 @@ pub fn launch(install_dir: []const u8, env_map: *EnvMap, meta: *const MetaStruct
         try env_map.put("RELEASE_SYS_CONFIG", config_sys_path_no_ext);
         try env_map.put("__BURRITO", "1");
 
-        var win_child_proc = std.ChildProcess.init(final_args, allocator);
+        var win_child_proc = std.process.Child.init(final_args, allocator);
         win_child_proc.env_map = env_map;
         win_child_proc.stdout_behavior = .Inherit;
         win_child_proc.stdin_behavior = .Inherit;
diff --git a/src/logger.zig b/src/logger.zig
index e6fc865..6109128 100644
--- a/src/logger.zig
+++ b/src/logger.zig
@@ -6,36 +6,48 @@ var allocator = arena.allocator();
 
 pub fn query(comptime message: []const u8, args: anytype) void {
     var stdout = std.io.getStdOut().writer();
-    var out_string = std.fmt.allocPrint(allocator, message, args) catch { return; };
+    const out_string = std.fmt.allocPrint(allocator, message, args) catch {
+        return;
+    };
     stdout.print("[?] {s}", .{out_string}) catch {};
 }
 
 pub fn log_stderr(comptime message: []const u8, args: anytype) void {
     var stderr = std.io.getStdErr().writer();
-    var out_string = std.fmt.allocPrint(allocator, message, args) catch { return; };
+    const out_string = std.fmt.allocPrint(allocator, message, args) catch {
+        return;
+    };
     stderr.print("[l] {s}\n", .{out_string}) catch {};
 }
 
 pub fn info(comptime message: []const u8, args: anytype) void {
     var stdout = std.io.getStdOut().writer();
-    var out_string = std.fmt.allocPrint(allocator, message, args) catch { return; };
+    const out_string = std.fmt.allocPrint(allocator, message, args) catch {
+        return;
+    };
     stdout.print("[i] {s}\n", .{out_string}) catch {};
 }
 
 pub fn warn(comptime message: []const u8, args: anytype) void {
     var stderr = std.io.getStdErr().writer();
-    var out_string = std.fmt.allocPrint(allocator, message, args) catch { return; };
+    const out_string = std.fmt.allocPrint(allocator, message, args) catch {
+        return;
+    };
     stderr.print("[w] {s}\n", .{out_string}) catch {};
 }
 
 pub fn err(comptime message: []const u8, args: anytype) void {
     var stderr = std.io.getStdErr().writer();
-    var out_string = std.fmt.allocPrint(allocator, message, args) catch { return; };
+    const out_string = std.fmt.allocPrint(allocator, message, args) catch {
+        return;
+    };
     stderr.print("[!] {s}\n", .{out_string}) catch {};
 }
 
 pub fn crit(comptime message: []const u8, args: anytype) void {
     var stderr = std.io.getStdErr().writer();
-    var out_string = std.fmt.allocPrint(allocator, message, args) catch { return; };
+    const out_string = std.fmt.allocPrint(allocator, message, args) catch {
+        return;
+    };
     stderr.print("[!!] {s}\n", .{out_string}) catch {};
 }
diff --git a/src/maintenance.zig b/src/maintenance.zig
index acbe4d7..f02f5a3 100644
--- a/src/maintenance.zig
+++ b/src/maintenance.zig
@@ -72,7 +72,7 @@ pub fn do_clean_old_versions(install_prefix_path: []const u8, current_install_pa
     defer arena.deinit();
     const allocator = arena.allocator();
 
-    const prefix_dir = try std.fs.openIterableDirAbsolute(install_prefix_path, .{ .access_sub_paths = true });
+    const prefix_dir = try std.fs.openDirAbsolute(install_prefix_path, .{ .access_sub_paths = true, .iterate = true });
 
     const current_install = try install.load_install_from_path(allocator, current_install_path);
 
diff --git a/src/wrapper.zig b/src/wrapper.zig
index d61a7d3..1908056 100644
--- a/src/wrapper.zig
+++ b/src/wrapper.zig
@@ -57,8 +57,8 @@ pub fn main() anyerror!void {
         var windows_arg_list = std.ArrayList([]u8).init(allocator);
         var i: usize = 0;
         while (i < arg_count) : (i += 1) {
-            var index = i;
-            var length = std.mem.len(raw_args.?[index]);
+            const index = i;
+            const length = std.mem.len(raw_args.?[index]);
             const argument = try std.unicode.utf16leToUtf8Alloc(allocator, raw_args.?[index][0..length]);
             try windows_arg_list.append(argument);
         }
@@ -165,7 +165,7 @@ fn get_base_install_dir() ![]const u8 {
         logger.info("New install path is: {s}", .{new_path});
         return try fs.path.join(allocator, &[_][]const u8{ new_path, install_suffix });
     } else |err| switch (err) {
-        error.InvalidUtf8 => {},
+        error.InvalidWtf8 => {},
         error.EnvironmentVariableNotFound => {},
         error.OutOfMemory => {},
     }
@@ -220,8 +220,8 @@ fn maybe_install_musl_runtime() anyerror!void {
     if (comptime IS_LINUX and !std.mem.eql(u8, build_options.MUSL_RUNTIME_PATH, "")) {
         // Check if the file was already extracted
         const cStr = try allocator.dupeZ(u8, build_options.MUSL_RUNTIME_PATH);
-        var statBuffer: std.os.Stat = undefined;
-        const statResult = std.os.system.stat(cStr, &statBuffer);
+        var statBuffer: std.c.Stat = undefined;
+        const statResult = std.c.stat(cStr, &statBuffer);
 
         if (statResult == 0) {
             // File exists