diff --git a/test-requirements.txt b/test-requirements.txt
index 97073a3f19..af1a59a0f4 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -19,7 +19,7 @@ mock>=1.2 # BSD
 mox3>=0.7.0 # Apache-2.0
 testtools>=1.4.0 # MIT
 testrepository>=0.0.18 # Apache-2.0/BSD
-pymongo>=3.0.2 # Apache-2.0
+pymongo>=3.0.2,!=3.1 # Apache-2.0
 redis>=2.10.0 # MIT
 psycopg2>=2.5 # LGPL/ZPL
 cassandra-driver>=2.1.4 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index 824b6510c6..2d32d7a2ab 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,7 +10,6 @@ install_command = pip install -U {opts} {packages}
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands = find ./trove -type f -name "*.pyc" -delete
-           pip install pymongo===3.0.3
            {envpython} run_tests.py
            python setup.py testr --slowest
            {envpython} generate_examples.py