diff --git a/tests/server/test_pandas.py b/tests/server/test_pandas.py
index e1c3ee8fe..b2abda13e 100644
--- a/tests/server/test_pandas.py
+++ b/tests/server/test_pandas.py
@@ -2,7 +2,7 @@
 
 # standard library
 import unittest
-from mock import patch, sentinel, ANY
+from unittest.mock import patch, sentinel, ANY
 
 # first party
 from delphi.epidata.server.main import app