diff --git a/.github/workflows/Windows.yml b/.github/workflows/Windows.yml
index 36af6934..dd147e85 100644
--- a/.github/workflows/Windows.yml
+++ b/.github/workflows/Windows.yml
@@ -49,7 +49,7 @@ jobs:
       shell: cmd
     - name: Install cygwin additional packages
       run: |
-          C:\tools\cygwin\cygwinsetup.exe -qgnNdO -R C:/tools/cygwin -s http://mirrors.kernel.org/sourceware/cygwin/ -P socat,curl,cron,unzip,git
+          C:\tools\cygwin\cygwinsetup.exe -qgnNdO -R C:/tools/cygwin -s http://mirrors.kernel.org/sourceware/cygwin/ -P socat,curl,cron,unzip,git,xxd
       shell: cmd
     - name: Set ENV
       shell: cmd