diff --git a/cms/envs/acceptance.py b/cms/envs/acceptance.py
index 4d1f1f2a4b..4b27c2a24f 100644
--- a/cms/envs/acceptance.py
+++ b/cms/envs/acceptance.py
@@ -21,7 +21,7 @@ MODULESTORE_OPTIONS = {
     'default_class': 'xmodule.raw_module.RawDescriptor',
     'host': 'localhost',
     'db': 'test_xmodule',
-    'collection': 'acceptance_modulestore',
+    'collection': 'acceptance_modulestore_%s' % uuid4().hex,
     'fs_root': TEST_ROOT / "data",
     'render_template': 'mitxmako.shortcuts.render_to_string',
 }
@@ -45,7 +45,7 @@ CONTENTSTORE = {
     'ENGINE': 'xmodule.contentstore.mongo.MongoContentStore',
     'OPTIONS': {
         'host': 'localhost',
-        'db': 'acceptance_xcontent',
+        'db': 'acceptance_xcontent_%s' % uuid4().hex,
     },
     # allow for additional options that can be keyed on a name, e.g. 'trashcan'
     'ADDITIONAL_OPTIONS': {
diff --git a/common/djangoapps/terrain/browser.py b/common/djangoapps/terrain/browser.py
index d237edc4b7..6b2114d8cc 100644
--- a/common/djangoapps/terrain/browser.py
+++ b/common/djangoapps/terrain/browser.py
@@ -17,6 +17,8 @@ from selenium.common.exceptions import WebDriverException
 # These names aren't used, but do important work on import.
 from lms import one_time_startup        # pylint: disable=W0611
 from cms import one_time_startup        # pylint: disable=W0611
+from pymongo import MongoClient
+import xmodule.modulestore.django
 
 # There is an import issue when using django-staticfiles with lettuce
 # Lettuce assumes that we are using django.contrib.staticfiles,
@@ -103,3 +105,7 @@ def teardown_browser(total):
     Quit the browser after executing the tests.
     """
     world.browser.quit()
+    mongo = MongoClient()
+    mongo.drop_database(settings.CONTENTSTORE['OPTIONS']['db'])
+    modulestore = xmodule.modulestore.django.modulestore()
+    modulestore.collection.drop()
diff --git a/lms/envs/acceptance.py b/lms/envs/acceptance.py
index 3b87bb4326..be604eea8d 100644
--- a/lms/envs/acceptance.py
+++ b/lms/envs/acceptance.py
@@ -16,13 +16,14 @@ DEBUG = True
 # Disable warnings for acceptance tests, to make the logs readable
 import logging
 logging.disable(logging.ERROR)
+from uuid import uuid4
 
 # Use the mongo store for acceptance tests
 modulestore_options = {
     'default_class': 'xmodule.raw_module.RawDescriptor',
     'host': 'localhost',
     'db': 'test_xmodule',
-    'collection': 'acceptance_modulestore',
+    'collection': 'acceptance_modulestore_%s' % uuid4().hex,
     'fs_root': TEST_ROOT / "data",
     'render_template': 'mitxmako.shortcuts.render_to_string',
 }
@@ -42,7 +43,7 @@ CONTENTSTORE = {
     'ENGINE': 'xmodule.contentstore.mongo.MongoContentStore',
     'OPTIONS': {
         'host': 'localhost',
-        'db': 'test_xmodule',
+        'db': 'acceptance_xcontent_%s' % uuid4().hex,
     }
 }