diff --git a/README.md b/README.md
index fdf3616f..49210109 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Please see the documentation and guide below to get started.
 ## Documentation
 
 * [Release Notes](docs/release-notes.md)
-* [Setup, Installation, and Maintenance Guide (2023-08-08)](docs/uefi-standalone.md)
+* [Setup, Installation, and Maintenance Guide (2023-08-19)](docs/uefi-standalone.md)
 
 ## Credits
 
diff --git a/docs/release-notes.md b/docs/release-notes.md
index bbf641e9..ca710ba0 100644
--- a/docs/release-notes.md
+++ b/docs/release-notes.md
@@ -2,6 +2,13 @@
 
 This file contains important information for each release.
 
+## 2023-08-19
+
+This release updates nixpkgs and Mesa.
+
+In particular, nixpkgs is updated to fix a regression in cross-compilation
+and a non-deterministic build failure of GRUB.
+
 ## 2023-08-08
 
 This release does not update any software.
diff --git a/docs/uefi-standalone.md b/docs/uefi-standalone.md
index 41f2a8d4..7e8a2e19 100644
--- a/docs/uefi-standalone.md
+++ b/docs/uefi-standalone.md
@@ -1,11 +1,11 @@
-# UEFI Boot Standalone NixOS (2023-08-08)
+# UEFI Boot Standalone NixOS (2023-08-19)
 
 This guide will build and was tested with the following software:
 * Asahi Linux kernel version 6.3.0-asahi13
 * Asahi Linux's Mesa version 23.3.0_asahi-20230812-1
 * m1n1 version v1.2.9
 * Asahi Linux's U-Boot version 2023.04.asahi2-1
-* Nixpkgs, as of 2023-07-22
+* Nixpkgs, as of 2023-08-17
 * macOS stub 12.3
 
 NOTE: The latest version of this guide will always be [at its home](https://github.com/tpwrules/nixos-apple-silicon/blob/main/docs/uefi-standalone.md). For more general information about Linux on Apple Silicon Macs, refer to the [Asahi Linux project](https://asahilinux.org/) and [alpha installer release](https://asahilinux.org/2022/03/asahi-linux-alpha-release/).