diff --git a/sendgrid/version.py b/sendgrid/version.py
index 144bf2f7f..c1170678c 100644
--- a/sendgrid/version.py
+++ b/sendgrid/version.py
@@ -1 +1 @@
-__version__ = '6.3.2'
+__version__ = '6.4.0'