diff --git a/build.zig b/build.zig
index 85e6b1a..4fb6eaa 100644
--- a/build.zig
+++ b/build.zig
@@ -5,7 +5,7 @@ pub fn build(b: *std.Build) !void {
     const target = b.standardTargetOptions(.{});
     if (target.result.os.tag == .windows) {
         std.log.err("\x1b[31mPlatform Not Supported\x1b[0m\nCurrently, Facil.io and Zap are not compatible with Windows. Consider using Linux or Windows Subsystem for Linux (WSL) instead.\nFor more information, please see:\n- https://github.com/zigzap/zap#most-faq\n- https://facil.io/#forking-contributing-and-all-that-jazz\n", .{});
-        std.os.exit(1);
+        std.process.exit(1);
     }
     // Standard release options allow the person running `zig build` to select
     // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
@@ -13,7 +13,7 @@ pub fn build(b: *std.Build) !void {
 
     const use_openssl = b.option(bool, "openssl", "Use system-installed openssl for TLS support in zap") orelse blk: {
         // Alternatively, use an os env var to determine whether to build openssl support
-        if (std.os.getenv("ZAP_USE_OPENSSL")) |val| {
+        if (std.posix.getenv("ZAP_USE_OPENSSL")) |val| {
             if (std.mem.eql(u8, val, "true")) break :blk true;
         }
         break :blk false;