diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 083be1f9..38306329 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ on:
       - "master"
       - "dev"
       # temporarily added
-      - "t019-exclude-windows-from-ci"
+      - "364-t020-not-working-under-mac-os"
   schedule:
     # Run a cron job once weekly on Monday
     - cron: "0 3 * * 1"
@@ -75,17 +75,22 @@ jobs:
         run: |
           PYTEST_ARGS="--nbval-lax --current-env --dist loadscope --numprocesses 2"
 
-          # Ignore T019 under Windows, see https://github.com/volkamerlab/teachopencadd/issues/313
           PYTEST_IGNORE_T019="--ignore=teachopencadd/talktorials/T019_md_simulation/talktorial.ipynb"
+          PYTEST_IGNORE_T020="--ignore=teachopencadd/talktorials/T020_md_analysis/talktorial.ipynb"
 
-          if [ "$RUNNER_OS" != "Windows" ]; then
-            # If not Windows, run all
-            pytest $PYTEST_ARGS teachopencadd/talktorials/
-          else
-            # If Windows, run all but T019
-            pytest $PYTEST_ARGS teachopencadd/talktorials/ $PYTEST_IGNORE_T019
+          IGNORE=""
+
+          if [ "$RUNNER_OS" == "Windows" ]; then
+            # Ignore T019 under Windows, see https://github.com/volkamerlab/teachopencadd/issues/313
+            IGNORE="$IGNORE $PYTEST_IGNORE_T019"
+          fi
+
+          if [ "$RUNNER_OS" == "macOS" ]; then
+            IGNORE="$IGNORE $PYTEST_IGNORE_T019"
           fi
 
+          pytest $PYTEST_ARGS teachopencadd/talktorials/ $IGNORE
+
   format:
     name: Black
     runs-on: ubuntu-latest