diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1d2ca9c..8e51046 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -33,6 +33,7 @@ jobs:
           echo 'Server = https://repo.msys2.org/mingw/$repo/' > /etc/pacman.d/mirrorlist.mingw
           echo 'Server = https://repo.msys2.org/msys/$arch/' > /etc/pacman.d/mirrorlist.msys
           pacman-conf.exe
+          printf "\n[artiq]\nSigLevel = Optional TrustAll\nServer = https://msys2.m-labs.hk/artiq-beta\n" >> /etc/pacman.conf
 
       - name: Update using the main mirror & Check install
         run: |
diff --git a/make-msys2-installer b/make-msys2-installer
index 83f32e4..515639b 100644
--- a/make-msys2-installer
+++ b/make-msys2-installer
@@ -80,6 +80,9 @@ create_chroot_system() {
     pacman -Syu --root "${_newmsys}"
     pacman -S filesystem msys2-runtime --noconfirm --root "${_newmsys}"
     pacman -S base --noconfirm --root "${_newmsys}"
+    printf "\n[artiq]\nSigLevel = Optional TrustAll\nServer = https://msys2.m-labs.hk/artiq-beta\n" >> ${_newmsys}/etc/pacman.conf
+    pacman -Syy --root "${_newmsys}"
+    pacman -S ${MINGW_PACKAGE_PREFIX}-artiq --noconfirm --root "${_newmsys}"
     pacman -Q --root "${_newmsys}" > "${_thisdir}/msys2-base-x86_64-${_date}.packages.txt"
   popd > /dev/null
 }