diff --git a/.github/workflows/github-actions.yaml b/.github/workflows/github-actions.yaml
index 4759b1b..2782a36 100644
--- a/.github/workflows/github-actions.yaml
+++ b/.github/workflows/github-actions.yaml
@@ -29,7 +29,7 @@ jobs:
         sudo apt-get install mash ncbi-blast+ libssl-dev libcurl4-openssl-dev mafft libssl-dev ca-certificates -y
         sudo apt-get install python3-pip python3-dev python3-biopython -y
         python3 -m pip install --upgrade pip setuptools
-        pip3 install pytest fastcluster openpyxl pycurl pandas scipy numpy
+        pip3 install pytest fastcluster openpyxl pycurl pandas scipy "numpy<2"
         python setup.py install
     - name: Test  with pytest
       run: |