diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b011d9e..7de9014 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,9 +19,12 @@ jobs:
       - name: setup-msys2
         uses: msys2/setup-msys2@v2
         with:
-          msystem: MSYS
+          msystem: MINGW64
           update: true
-          install: p7zip tar mingw-w64-x86_64-qt-installer-framework
+          install: >-
+            tar
+            mingw-w64-x86_64-qt-installer-framework
+            mingw-w64-x86_64-7zip
 
       - name: Switch to the main mirror
         shell: msys2 {0}
diff --git a/make-msys2-installer b/make-msys2-installer
index a51c8a1..453832e 100644
--- a/make-msys2-installer
+++ b/make-msys2-installer
@@ -78,7 +78,8 @@ create_chroot_system() {
 main() {
   pacman -S --noconfirm --needed \
     "${MINGW_PACKAGE_PREFIX}-qt-installer-framework" \
-    "${MINGW_PACKAGE_PREFIX}-7zip"
+    "${MINGW_PACKAGE_PREFIX}-7zip" \
+    "tar"
 
   create_chroot_system