diff --git a/json_to_md.py b/json_to_md.py
index a2d5c3c8..8b210299 100644
--- a/json_to_md.py
+++ b/json_to_md.py
@@ -7,6 +7,7 @@ import re
 import pytest
 from pytest import ExitCode
 import traceback
+import pytz
 
 def stringify(obj, indent=0):
     space = '  ' * indent