diff --git a/tests/test_hocrtransform.py b/tests/test_hocrtransform.py
index d792ca76..5bdbcc89 100644
--- a/tests/test_hocrtransform.py
+++ b/tests/test_hocrtransform.py
@@ -20,7 +20,7 @@ import sys
 @pytest.fixture
 def blank_hocr(tmpdir):
     filename = Path(str(tmpdir)) / "blank.hocr"
-    with open(filename, 'w') as f:
+    with open(str(filename), 'w') as f:
         f.write(HOCR_TEMPLATE)
     return filename
 
@@ -31,8 +31,9 @@ def test_mono_image(blank_hocr, outdir):
         im.putpixel((n, n), 1)
     im.save(outdir / 'mono.tif', format='TIFF')
 
-    hocr = hocrtransform.HocrTransform(blank_hocr, 300)
-    hocr.to_pdf(str(outdir / 'mono.pdf'), imageFileName=outdir / 'mono.tif')
+    hocr = hocrtransform.HocrTransform(str(blank_hocr), 300)
+    hocr.to_pdf(
+        str(outdir / 'mono.pdf'), imageFileName=str(outdir / 'mono.tif'))
 
     qpdf.check(str(outdir / 'mono.pdf'))
 
diff --git a/tests/test_main.py b/tests/test_main.py
index 0abfc392..f2333db8 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -242,10 +242,11 @@ def test_skip_ocr(spoof_tesseract_cache, resources, outpdf):
 
 
 def test_argsfile(spoof_tesseract_noop, resources, outdir):
-    with open(outdir / 'test_argsfile.txt', 'w') as argsfile:
+    path_argsfile = outdir / 'test_argsfile.txt'
+    with open(str(path_argsfile), 'w') as argsfile:
         print('--title', 'ArgsFile Test', '--author', 'Test Cases',
               sep='\n', end='\n', file=argsfile)
-    check_ocrmypdf(resources / 'graph.pdf', outdir / 'args.pdf',
+    check_ocrmypdf(resources / 'graph.pdf', path_argsfile,
                    '@' + str(outdir / 'test_argsfile.txt'),
                    env=spoof_tesseract_noop)
 
@@ -473,9 +474,9 @@ def test_input_file_not_a_pdf(no_outpdf):
 
 def test_qpdf_repair_fails(spoof_qpdf_always_error, resources, no_outpdf):
     p, out, err = run_ocrmypdf(
+        resources / 'c02-22.pdf', no_outpdf,
         '-v', '1',
-        resources / 'c02-22.pdf', no_outpdf, env=spoof_qpdf_always_error)
-    print(out)
+        env=spoof_qpdf_always_error)
     print(err)
     assert p.returncode == ExitCode.input_file
 
diff --git a/tests/test_pageinfo.py b/tests/test_pageinfo.py
index d9049d8c..eda7e276 100644
--- a/tests/test_pageinfo.py
+++ b/tests/test_pageinfo.py
@@ -35,6 +35,7 @@ def test_single_page_text(outdir):
     assert len(page['images']) == 0
 
 
+@pytest.mark.skipif(sys.version_info < (3, 5), reason="needs Path.read_bytes")
 def test_single_page_image(outdir):
     filename = outdir / 'image-mono.pdf'
 
@@ -51,8 +52,7 @@ def test_single_page_image(outdir):
     pdf_bytes = img2pdf.convert(
             im_bytes, producer="img2pdf", with_pdfrw=False,
             layout_fun=layout_fun)
-    with open(filename, 'wb') as pdf:
-        pdf.write(pdf_bytes)
+    filename.write_bytes(pdf_bytes)
 
     pdfinfo = pageinfo.pdf_get_all_pageinfo(str(filename))