diff --git a/ldclient/version.py b/ldclient/version.py
index 1d01958d..60fd02a1 100644
--- a/ldclient/version.py
+++ b/ldclient/version.py
@@ -1 +1 @@
-VERSION = "6.4.0"
+VERSION = "6.4.1"
diff --git a/setup.py b/setup.py
index 95c419f3..0e24b231 100644
--- a/setup.py
+++ b/setup.py
@@ -13,7 +13,7 @@ def parse_requirements(filename):
     return [line for line in lineiter if line and not line.startswith("#")]
 
 
-ldclient_version='6.4.0'
+ldclient_version='6.4.1'
 
 # parse_requirements() returns generator of pip.req.InstallRequirement objects
 install_reqs = parse_requirements('requirements.txt')