diff --git a/build.zig b/build.zig
index d5fe34f..6910fda 100644
--- a/build.zig
+++ b/build.zig
@@ -4,7 +4,7 @@ const builtin = @import("builtin");
 pub fn build(b: *std.Build) void {
     comptime {
         const current_zig = builtin.zig_version;
-        const min_zig = std.SemanticVersion.parse("0.12.0-dev.2030") catch unreachable; // build system changes: ziglang/zig#18160
+        const min_zig = std.SemanticVersion.parse("0.13.0-dev.230+50a141945") catch unreachable; // build system changes: ziglang/zig#19597
         if (current_zig.order(min_zig) == .lt) {
             @compileError(std.fmt.comptimePrint("Your Zig version v{} does not meet the minimum build requirement of v{}", .{ current_zig, min_zig }));
         }
@@ -14,20 +14,20 @@ pub fn build(b: *std.Build) void {
     const optimize = b.standardOptimizeOption(.{});
 
     const extism_module = b.addModule("extism", .{
-        .root_source_file = .{ .path = "src/main.zig" },
+        .root_source_file = b.path("src/main.zig"),
     });
 
     var tests = b.addTest(.{
         .name = "Library Tests",
-        .root_source_file = .{ .path = "test.zig" },
+        .root_source_file = b.path("test.zig"),
         .target = target,
         .optimize = optimize,
     });
 
     tests.root_module.addImport("extism", extism_module);
     tests.linkLibC();
-    tests.addIncludePath(.{ .path = "/usr/local/include" });
-    tests.addLibraryPath(.{ .path = "/usr/local/lib" });
+    tests.addIncludePath(.{ .cwd_relative = "/usr/local/include" });
+    tests.addLibraryPath(.{ .cwd_relative = "/usr/local/lib" });
     tests.linkSystemLibrary("extism");
     const tests_run_step = b.addRunArtifact(tests);
 
@@ -36,15 +36,15 @@ pub fn build(b: *std.Build) void {
 
     var example = b.addExecutable(.{
         .name = "Example",
-        .root_source_file = .{ .path = "examples/basic.zig" },
+        .root_source_file = b.path("examples/basic.zig"),
         .target = target,
         .optimize = optimize,
     });
 
     example.root_module.addImport("extism", extism_module);
     example.linkLibC();
-    example.addIncludePath(.{ .path = "/usr/local/include" });
-    example.addLibraryPath(.{ .path = "/usr/local/lib" });
+    example.addIncludePath(.{ .cwd_relative = "/usr/local/include" });
+    example.addLibraryPath(.{ .cwd_relative = "/usr/local/lib" });
     example.linkSystemLibrary("extism");
     const example_run_step = b.addRunArtifact(example);
 
@@ -56,7 +56,7 @@ pub fn addLibrary(to: *std.Build.Step.Compile, b: *std.Build) void {
     to.root_module.addImport("extism", b.dependency("extism", .{}).module("extism"));
     to.linkLibC();
     // TODO: switch based on platform and use platform-specific paths here
-    to.addIncludePath(.{ .path = "/usr/local/include" });
-    to.addLibraryPath(.{ .path = "/usr/local/lib" });
+    to.addIncludePath(.{ .cwd_relative = "/usr/local/include" });
+    to.addLibraryPath(.{ .cwd_relative = "/usr/local/lib" });
     to.linkSystemLibrary("extism");
 }
diff --git a/test.zig b/test.zig
index 8b30f16..5bdcb2d 100644
--- a/test.zig
+++ b/test.zig
@@ -128,7 +128,7 @@ test "Plugin Cancellation" {
     var handle = plugin.cancelHandle();
     const S = struct {
         fn _test(h: *sdk.CancelHandle) void {
-            std.os.nanosleep(1, 0);
+            std.time.sleep(1 * std.time.ns_per_s);
             _ = h.cancel();
         }
     };