diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..163a508
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,23 @@
+name: ci
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+jobs:
+  rax3000m-op23_05_4:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: 3.x
+      - name: Install dependencies
+        run: |
+          sudo apt install -y u-boot-tools device-tree-compiler
+      - name: Test
+        run: |
+          wget https://downloads.openwrt.org/releases/23.05.4/targets/mediatek/filogic/openwrt-23.05.4-mediatek-filogic-cmcc_rax3000m-squashfs-sysupgrade.itb && \
+          python3 patch_itb.py openwrt-23.05.4-mediatek-filogic-cmcc_rax3000m-squashfs-sysupgrade.itb patched.itb && \
+          (echo "04b38ffa06ccfe85c7337d69eedb1f9d  patched.itb" | md5sum -c)