diff --git a/plotly/session.py b/plotly/session.py
index f9095a3ea4d..1a76b58ccfb 100644
--- a/plotly/session.py
+++ b/plotly/session.py
@@ -19,7 +19,7 @@
 CREDENTIALS_KEYS = {
     'username': six.string_types,
     'api_key': six.string_types,
-    'stream_ids': []
+    'stream_ids': list
 }
 
 CONFIG_KEYS = {
diff --git a/plotly/version.py b/plotly/version.py
index 18b404d11f2..4c2dc20a737 100644
--- a/plotly/version.py
+++ b/plotly/version.py
@@ -1 +1 @@
-__version__ = '1.6.8'
+__version__ = '1.6.9'