diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index dbe8ba1..abf4e24 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -23,7 +23,8 @@ jobs:
       - name: Install pip and pytest
         run: |
           apt-get update
-          apt-get install -y python3-pip pytest
+          apt-get install -y python3-pip
+          pip install -U pytest
       - name: Clone
         uses: actions/checkout@v2
       - name: Install pymatt