diff --git a/HISTORY.rst b/HISTORY.rst
index 0c37cee..10e1e87 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -4,7 +4,7 @@ History
 0.16.0 (2024-XX - Unreleased)
 --------------------------------
 
-0.15.5 (2024-05-25)
+0.15.6 (2024-05-25)
 --------------------------------
 
 * Feature: Support websockets client / endpoints (#508)
diff --git a/tiingo/__version__.py b/tiingo/__version__.py
index 5865613..68f4981 100644
--- a/tiingo/__version__.py
+++ b/tiingo/__version__.py
@@ -1,2 +1,2 @@
 # -*- coding: utf-8 -*-
-__version__ = "0.15.5"
+__version__ = "0.15.6"