diff --git a/Mac/BuildScript/build-installer.py b/Mac/BuildScript/build-installer.py
index 1852397ed6f391..ff183a8ac87c44 100755
--- a/Mac/BuildScript/build-installer.py
+++ b/Mac/BuildScript/build-installer.py
@@ -314,9 +314,9 @@ def library_recipes():
     if PYTHON_3:
         result.extend([
           dict(
-              name="XZ 5.2.3",
-              url="http://tukaani.org/xz/xz-5.2.3.tar.gz",
-              checksum='ef68674fb47a8b8e741b34e429d86e9d',
+              name="XZ 5.8.1",
+              url="https://github.com/tukaani-project/xz/releases/download/v5.8.1/xz-5.8.1.tar.gz",
+              checksum='209cb25608ab0841f68df4d50d0faa22',
               configure_pre=[
                     '--disable-dependency-tracking',
               ]
diff --git a/Misc/NEWS.d/next/macOS/2025-10-31-09-46-13.gh-issue-140849.OKe0x_.rst b/Misc/NEWS.d/next/macOS/2025-10-31-09-46-13.gh-issue-140849.OKe0x_.rst
new file mode 100644
index 00000000000000..da519e88017365
--- /dev/null
+++ b/Misc/NEWS.d/next/macOS/2025-10-31-09-46-13.gh-issue-140849.OKe0x_.rst
@@ -0,0 +1 @@
+Update macOS installer to use XZ 5.8.1.