diff --git a/.github/workflows/run_tests.yml b/.github/workflows/run_tests.yml
index 7a10415ad..2904dacc1 100644
--- a/.github/workflows/run_tests.yml
+++ b/.github/workflows/run_tests.yml
@@ -26,7 +26,7 @@ jobs:
         with:
           auto-update-conda: true
           python-version: ${{ matrix.python-version }}
-          environment-file: environment.yml
+          environment-file: environment-minimal.yml
           activate-environment: caiman
 
       - name: Install OS Dependencies