diff --git a/lightweight_charts/helpers.py b/lightweight_charts/helpers.py
index acb32ef..1fbca38 100644
--- a/lightweight_charts/helpers.py
+++ b/lightweight_charts/helpers.py
@@ -118,7 +118,7 @@ class Panel:
         self.precision = precision
 
 
-def chart(panes: list[Panel], sync=False, title='', size="m", xloc=None, session: str="9:30:00", precision=None):
+def chart(panes: list[Panel], sync=False, title='', size="m", xloc=None, session: str="9:30:00, 09:30:05", precision=None):
     """
     Function to fast render a chart with multiple panes. This function manipulates graphical
     output or interfaces with an external framework to display charts with synchronized
diff --git a/setup.py b/setup.py
index ac029e9..09be3b8 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@ with open('README.md', 'r', encoding='utf-8') as f:
 
 setup(
     name='lightweight_charts',
-    version='2.1.6',
+    version='2.1.7',
     packages=find_packages(),
     python_requires='>=3.8',
     install_requires=[