diff --git a/tests/requirements.txt b/tests/requirements.txt
index 9874c329e..8adca254e 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -36,6 +36,7 @@ importlib-metadata==1.6.0
 jsonfield==3.1.0
 libsass==0.20.0
 lxml==4.5.0
+more-itertools==8.2.0
 packaging==20.3
 pathlib2==2.3.5
 phonenumbers==8.12.3