diff --git a/pyproject.toml b/pyproject.toml
index f67b78e..ce03c75 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,3 +53,6 @@ exclude = [
     "test/__pycache__",
     "test/sub-path/__pycache__",
 ]
+
+[tool.pytest.ini_options]
+xfail_strict = true
diff --git a/test/test_main.py b/test/test_main.py
index 0b71b43..122ae4a 100644
--- a/test/test_main.py
+++ b/test/test_main.py
@@ -333,6 +333,9 @@ def pushd(path):
 }
 
 
+@pytest.mark.xfail(getattr(sys, "pypy_version_info", (0, 0, 0))[:3]
+                   == (7, 3, 16) and os.name == "nt",
+                   reason="PyPy 7.3.16 is broken on Windows")
 @pytest.mark.parametrize("buildsys", INTEGRATION_TESTS)
 def test_integration(tmp_path, capfd, buildsys, verify_zipfile_cleanup,
                      distutils_cache_cleanup):
@@ -364,6 +367,9 @@ def test_integration(tmp_path, capfd, buildsys, verify_zipfile_cleanup,
                 == {x.compress_type for x in zipf.infolist()})
 
 
+@pytest.mark.xfail(getattr(sys, "pypy_version_info", (0, 0, 0))[:3]
+                   == (7, 3, 16) and os.name == "nt",
+                   reason="PyPy 7.3.16 is broken on Windows")
 @pytest.mark.parametrize("buildsys", INTEGRATION_TESTS)
 def test_integration_install(tmp_path, buildsys, verify_zipfile_cleanup,
                              distutils_cache_cleanup):