diff --git a/.github/workflows/test-dev.yml b/.github/workflows/test-dev.yml
index d67f633..06d049a 100644
--- a/.github/workflows/test-dev.yml
+++ b/.github/workflows/test-dev.yml
@@ -6,10 +6,7 @@ jobs:
 
     Test:
 
-        runs-on: ${{ matrix.os }}-latest
-        strategy:
-            matrix:
-                os: ["ubuntu", "macos", "windows"]
+        runs-on: ubuntu-latest
         defaults:
             run:
                 shell: bash -l {0}
@@ -32,8 +29,7 @@ jobs:
 
             - name: Install dependencies for testing
               run: |
-                    conda install conda-forge::coveralls
-                    # conda install -n test-env -c conda-forge pytest coveralls
+                    conda install -n test-env -c conda-forge pytest coveralls
                     # conda env update -n test-env --file environment-dev.yml
 
             - name: Run tests with coveralls