diff --git a/setup.py b/setup.py
index 829a1ef..f1f7ddf 100755
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,8 @@ required = [
     'dateparser',
     'iso8601',
     'python-dateutil'
-    'ruamel.yaml'
+    'ruamel.yaml',
+    'tzlocal'
 ]
 
 setup(