diff --git a/U-Boot.md b/U-Boot.md
index 8aac42e..cbdb42e 100644
--- a/U-Boot.md
+++ b/U-Boot.md
@@ -36,18 +36,18 @@ Build an sdImage by `nix build`, and then flash it to a SD card using `dd`(pleas
 # 1. Build using the qemu-emulated aarch64 environment or on Orange Pi 5 Plus itself.
 # In this way, we can take advantage of the official build cache on NixOS to greatly speed up the build
 # it takes about 40 minutes to build the image(mainly the kernel) on my Orange Pi 5 Plus.
-nix build .#sdImage-opi5plus
+nix build github:ryan4yin/nixos-rk3588/2024032400#sdImage-opi5plus
 # 2. Build using the cross-compilation environment
 # NOTE: This will take a long time to build, as the official build cache is not available for the cross-compilation environment,
 # you have to build everything from scratch.
-nix build .#sdImage-opi5plus-cross
+nix build github:ryan4yin/nixos-rk3588/2024032400#sdImage-opi5plus-cross
 
 zstdcat result/sd-image/orangepi5plus-sd-image-*.img.zst | sudo dd status=progress bs=8M of=/dev/sdX
 
 # ==================================
 # For Orange PI 5 
 # ==================================
-nix build .#sdImage-opi5
+nix build github:ryan4yin/nixos-rk3588/2024032400#sdImage-opi5
 # nix build .#sdImage-opi5-cross  # fully cross-compiled
 stdcat result/sd-image/orangepi5-sd-image-*.img.zst | sudo dd status=progress bs=8M of=/dev/sdX
 ```
diff --git a/UEFI.md b/UEFI.md
index 7d44b8f..7424468 100644
--- a/UEFI.md
+++ b/UEFI.md
@@ -37,13 +37,13 @@ First, build the raw efi image:
 # In this way, we can take advantage of the official build cache on NixOS to greatly speed up the build
 # it takes about 40 minutes to build the image(mainly the kernel) on my Orange Pi 5 Plus.
 # for orange pi 5 plus
-nix build .#rawEfiImage-opi5plus --show-trace -L --verbose
+nix build github:ryan4yin/nixos-rk3588/2024032400#rawEfiImage-opi5plus --show-trace -L --verbose
 
 # for orange pi 5
-nix build .#rawEfiImage-opi5 --show-trace -L --verbose
+nix build github:ryan4yin/nixos-rk3588/2024032400#rawEfiImage-opi5 --show-trace -L --verbose
 
 # for rock 5a
-nix build .#rawEfiImage-rock5a --show-trace -L --verbose
+nix build github:ryan4yin/nixos-rk3588/2024032400#rawEfiImage-rock5a --show-trace -L --verbose
 ```
 
 If you encounter issues like [`cannot allocate memory` despite free reporting "available"](https://stackoverflow.com/questions/46464785/cannot-allocate-memory-despite-free-reporting-available) when building the raw efi image, check your `dmesg`, and try to fix it via: