diff --git a/debtcollector/tests/base.py b/debtcollector/tests/base.py
index 1c30cdb..5154326 100644
--- a/debtcollector/tests/base.py
+++ b/debtcollector/tests/base.py
@@ -15,9 +15,9 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-from oslotest import base
+import unittest
 
 
-class TestCase(base.BaseTestCase):
+class TestCase(unittest.TestCase):
 
     """Test case base class for all unit tests."""
diff --git a/test-requirements.txt b/test-requirements.txt
index 0a17355..8ea24fc 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,7 +8,6 @@ coverage!=4.4,>=4.0 # Apache-2.0
 python-subunit>=0.0.18 # Apache-2.0/BSD
 sphinx!=1.6.1,>=1.5.1 # BSD
 oslosphinx>=4.7.0 # Apache-2.0
-oslotest>=1.10.0 # Apache-2.0
 testrepository>=0.0.18 # Apache-2.0/BSD
 testtools>=1.4.0 # MIT
 fixtures>=3.0.0 # Apache-2.0/BSD