diff --git a/duo_client/client.py b/duo_client/client.py
index a0f8a02..6f4e6d0 100644
--- a/duo_client/client.py
+++ b/duo_client/client.py
@@ -1,7 +1,7 @@
 """
 Low level functions for generating Duo Web API calls and parsing results.
 """
-__version__ = '5.5.0'
+__version__ = '5.6.0'
 
 import base64
 import collections