diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index f1ba1f3..254dbfc 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -63,19 +63,17 @@ jobs:
       # - name: Install dependencies
       #   run: ${{ matrix.INSTALL_DEPS }}
 
-      # - name: Setup cosmosis standard library
-      #   run: |
-      #     conda install -c conda-forge cosmosis-build-standard-library
-      #     cosmosis-build-standard-library -i
+      - name: Setup cosmosis standard library
+        run: |
+          source cosmosis-configure
+          cosmosis-build-standard-library -i
 
       # Install our package.
       - name: Install legacy_blinding
         shell: bash -l {0}
         run: |
-          source cosmosis-configure
           python -m pip install --upgrade pip
           python -m pip install .
-          pytest ./tests
 
       # Perform the unit test and outputs a coverage report
       - name: Test with pytest