diff --git a/.github/workflows/Function-test.yml b/.github/workflows/Function-test.yml
index 1959158..35d6442 100644
--- a/.github/workflows/Function-test.yml
+++ b/.github/workflows/Function-test.yml
@@ -28,6 +28,7 @@ jobs:
         echo $CONDA/bin >> $GITHUB_PATH
     - name: Install dependencies
       run: |
+        python -m pip install --upgrade pip
         pip install -r "requirements.txt"
     - name: Run pruning function test script
       run: |