diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 4782e8da..83924218 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -72,7 +72,7 @@ jobs:
         pip install --upgrade pip
         pip install ${{ matrix.qt-version }} numpy${{ matrix.numpy-version }} scipy pyopengl h5py matplotlib numba
         pip install .
-        pip install pytest pytest-cov pytest-xdist coverage
+        pip install pytest
     - name: "Install Linux VirtualDisplay"
       if: runner.os == 'Linux'
       run: |
@@ -107,9 +107,7 @@ jobs:
       run: |
         mkdir $SCREENSHOT_DIR
         pytest pyqtgraph examples -v \
-          -n auto \
           --junitxml pytest.xml \
-          --cov pyqtgraph --cov-report=xml --cov-report=html
       shell: bash
     - name: Upload Screenshots
       uses: actions/upload-artifact@v2
diff --git a/pyqtgraph/graphicsItems/tests/test_ErrorBarItem.py b/pyqtgraph/graphicsItems/tests/test_ErrorBarItem.py
index f28c681a..ae5a9606 100644
--- a/pyqtgraph/graphicsItems/tests/test_ErrorBarItem.py
+++ b/pyqtgraph/graphicsItems/tests/test_ErrorBarItem.py
@@ -13,18 +13,21 @@ def test_ErrorBarItem_defer_data():
     curve = pg.PlotCurveItem(x=x, y=x)
     plot.addItem(curve)
     app.processEvents()
+    app.processEvents()
     r_no_ebi = plot.viewRect()
 
     # ErrorBarItem with no data shouldn't affect the view rect
     err = pg.ErrorBarItem()
     plot.addItem(err)
     app.processEvents()
+    app.processEvents()
     r_empty_ebi = plot.viewRect()
 
     assert r_no_ebi.height() == r_empty_ebi.height()
 
     err.setData(x=x, y=x, bottom=x, top=x)
     app.processEvents()
+    app.processEvents()
     r_ebi = plot.viewRect()
 
     assert r_ebi.height() > r_empty_ebi.height()
@@ -32,6 +35,7 @@ def test_ErrorBarItem_defer_data():
     # unset data, ErrorBarItem disappears and view rect goes back to original
     err.setData(x=None, y=None)
     app.processEvents()
+    app.processEvents()
     r_clear_ebi = plot.viewRect()
 
     assert r_clear_ebi.height() == r_empty_ebi.height()