diff --git a/test-requirements.txt b/test-requirements.txt
index 0521c36af4..a0c5eb63c4 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -15,6 +15,7 @@ oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
 os-testr>=0.4.1 # Apache-2.0
 python-subunit>=0.0.18 # Apache-2.0/BSD
+pytz>=2013.6 # MIT
 sphinx!=1.2.0,!=1.3b1,<1.3,>=1.1.2 # BSD
 testrepository>=0.0.18 # Apache-2.0/BSD
 testscenarios>=0.4 # Apache-2.0/BSD