diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 55e6a7e41..e7b775bf4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -39,7 +39,8 @@ jobs:
     - name: Install Qlib with pip
       run: |
         if [ "$RUNNER_OS" == "Windows" ]; then
-          $CONDA\\python.exe -m pip install pyqlib --ignore-installed ruamel.yaml --user
+          $CONDA\\python.exe -m pip install numpy==1.19.5
+          $CONDA\\python.exe -m pip install pyqlib --ignore-installed ruamel.yaml numpy --user
         else
           sudo $CONDA/bin/python -m pip install numpy==1.19.5
           sudo $CONDA/bin/python -m pip install pyqlib --ignore-installed ruamel.yaml numpy