diff --git a/setup.py b/setup.py
index e4d9ad6..3e9fe73 100644
--- a/setup.py
+++ b/setup.py
@@ -38,7 +38,8 @@ setup(
         'Flask-Principal>=0.3',
         'Flask-WTF>=0.5.4',
         'Flask-Mail>=0.6.1',
-        'passlib>=1.5.3'
+        'itsdangerous>=0.15'
+        'passlib>=1.5.3',
     ],
     test_suite='nose.collector',
     tests_require=[