diff --git a/.github/workflows/backend-ncnn.yml b/.github/workflows/backend-ncnn.yml
index ddbf4adff8..f69c4c1635 100644
--- a/.github/workflows/backend-ncnn.yml
+++ b/.github/workflows/backend-ncnn.yml
@@ -103,15 +103,14 @@ jobs:
         run: |
           rm -rf .eggs && python3 -m pip install -e .
           python3 tools/check_env.py
-      - name: Install ppq
+      - name: Test ncnn + ppq pipeline
         run: |
-          git clone -b v0.6.6 https://github.com/openppl-public/ppq
+          git clone -b v0.6.6 --depth 1 https://github.com/openppl-public/ppq
           cd ppq
           python3 -m pip install -r requirements.txt
           python3 setup.py install
           python3 -m pip install ppq
-      - name: Test ncnn + ppq pipeline
-        run: |
+          cd ..
           export LD_LIBRARY_PATH="/root/workspace/mmdeploy/build/lib:${LD_LIBRARY_PATH}"
           export LD_LIBRARY_PATH="/root/workspace/mmdeploy/mmdeploy/lib:${LD_LIBRARY_PATH}"
           export work_dir=./work_dir