diff --git a/jenkinsapi_tests/unittests/test_build.py b/jenkinsapi_tests/unittests/test_build.py
index 2e2c2f4..9de816a 100644
--- a/jenkinsapi_tests/unittests/test_build.py
+++ b/jenkinsapi_tests/unittests/test_build.py
@@ -3,6 +3,7 @@ import pytest
 import pytz
 from . import configs
 import datetime
+import warnings
 from jenkinsapi.build import Build
 from jenkinsapi.job import Job
 
@@ -252,7 +253,7 @@ def test_build_env_vars_wo_injected_env_vars_plugin(monkeypatch, build):
     monkeypatch.setattr(Build, "get_data", fake_get_data)
 
     with pytest.raises(requests.HTTPError) as excinfo:
-        with pytest.warns(None) as record:
+        with warnings.catch_warnings(record=True) as record:
             build.get_env_vars()
     assert "404" == str(excinfo.value)
     assert len(record) == 1
@@ -269,7 +270,7 @@ def test_build_env_vars_other_exception(monkeypatch, build):
     monkeypatch.setattr(Build, "get_data", fake_get_data)
 
     with pytest.raises(Exception) as excinfo:
-        with pytest.warns(None) as record:
+        with warnings.catch_warnings(record=True) as record:
             build.get_env_vars()
     assert "" == str(excinfo.value)
     assert len(record) == 0