diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index eab6607b1..55e6a7e41 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -41,7 +41,8 @@ jobs:
         if [ "$RUNNER_OS" == "Windows" ]; then
           $CONDA\\python.exe -m pip install pyqlib --ignore-installed ruamel.yaml --user
         else
-          sudo $CONDA/bin/python -m pip install pyqlib --ignore-installed ruamel.yaml
+          sudo $CONDA/bin/python -m pip install numpy==1.19.5
+          sudo $CONDA/bin/python -m pip install pyqlib --ignore-installed ruamel.yaml numpy
         fi
       shell: bash