diff --git a/src/relstorage/adapters/sqlite/tests/test_sqlite.py b/src/relstorage/adapters/sqlite/tests/test_sqlite.py
index f62e9e77..3d0aea95 100644
--- a/src/relstorage/adapters/sqlite/tests/test_sqlite.py
+++ b/src/relstorage/adapters/sqlite/tests/test_sqlite.py
@@ -31,6 +31,7 @@
 from relstorage.tests.util import RUNNING_ON_APPVEYOR
 from relstorage._compat import PYPY
 
+
 class Sqlite3AdapterMixin(object):
 
     def __get_db_name(self):
diff --git a/src/relstorage/tests/blob/__init__.py b/src/relstorage/tests/blob/__init__.py
index e2902f73..d4cce710 100644
--- a/src/relstorage/tests/blob/__init__.py
+++ b/src/relstorage/tests/blob/__init__.py
@@ -7,7 +7,11 @@
 
 from nti.testing.time import MonotonicallyIncreasingTimeLayerMixin
 
-from gevent.exceptions import LoopExit
+try:
+    from gevent.exceptions import LoopExit
+except ModuleNotFoundError:
+    class LoopExit(Exception):
+        "Can never be thrown"
 
 from ZODB.DB import DB
 from ZODB.tests.util import setUp