diff --git a/nbconvert/exporters/tests/test_webpdf.py b/nbconvert/exporters/tests/test_webpdf.py

index a7a06321..103d1c25 100644

--- a/nbconvert/exporters/tests/test_webpdf.py

+++ b/nbconvert/exporters/tests/test_webpdf.py

@@ -5,6 +5,7 @@

 import io

 import pytest

+import os

 from unittest.mock import patch

@@ -17,6 +18,7 @@ class TestWebPDFExporter(ExportersTestsBase):

     exporter_class = WebPDFExporter

     @pytest.mark.network

+    @pytest.mark.skipif("NO_PYPPETEER" in os.environ, reason="test requires pyppeteer which is not packaged yet")

     def test_export(self):

         """

         Can a TemplateExporter export something?

@@ -25,6 +27,7 @@ class TestWebPDFExporter(ExportersTestsBase):

         assert len(output) > 0

     @patch('pyppeteer.util.check_chromium', return_value=False)

+    @pytest.mark.skipif("NO_PYPPETEER" in os.environ, reason="test requires pyppeteer which is not packaged yet")

     def test_webpdf_without_chromium(self, mock_check_chromium):

         """

         Generate PDFs if chromium not present?

diff --git a/nbconvert/tests/test_nbconvertapp.py b/nbconvert/tests/test_nbconvertapp.py

index a01782a7..b94ef532 100644

--- a/nbconvert/tests/test_nbconvertapp.py

+++ b/nbconvert/tests/test_nbconvertapp.py

@@ -147,6 +147,7 @@ class TestNbConvertApp(TestsBase):

             assert os.path.isfile('notebook with spaces.pdf')

     @pytest.mark.network

+    @pytest.mark.skipif("NO_PYPPETEER" in os.environ, reason="test requires pyppeteer which is not packaged yet")

     def test_webpdf_with_chromium(self):

         """

         Generate PDFs if chromium allowed to be downloaded?