diff --git a/.github/workflows/release-tamagotchi.yml b/.github/workflows/release-tamagotchi.yml
index 5d839a887..53e70c47d 100644
--- a/.github/workflows/release-tamagotchi.yml
+++ b/.github/workflows/release-tamagotchi.yml
@@ -135,6 +135,14 @@ jobs:
         if: matrix.os == 'ubuntu-latest' || matrix.os == 'ubuntu-24.04-arm'
         run: pnpm run -F @proj-airi/stage-tamagotchi build && pnpm -F @proj-airi/stage-tamagotchi exec electron-builder build ${{ matrix.builder-args }}
 
+      - name: Setup Flatpak (Linux Only)
+        if: ${{ matrix.os == 'ubuntu-latest' || matrix.os == 'ubuntu-24.04-arm' }}
+        run: |
+          sudo apt update
+          sudo apt install -y flatpak flatpak-builder elfutils
+          flatpak --version
+          flatpak --user remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
+
       - name: Build Flatpak (Linux Only) # Flatpak
         if: ${{ matrix.os == 'ubuntu-latest' || matrix.os == 'ubuntu-24.04-arm' }}
         working-directory: ./apps/stage-tamagotchi