diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 322de8f2a..b836c7a96 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -14,6 +14,9 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       max-parallel: 5
+      matrix:
+        python-version: ['3.9', '3.10', '3.11']
+      fail-fast: false
 
     steps:
       - uses: actions/checkout@v3
@@ -22,7 +25,7 @@ jobs:
         uses: conda-incubator/setup-miniconda@v2
         with:
           auto-update-conda: true
-          python-version: '3.11'
+          python-version: ${{ matrix.python-version }}
           environment-file: environment.yml
           activate-environment: caiman