diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 2d2909b4..494f70ad 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 4.0.0
+current_version = 4.0.1
 parse = (?P<major>\d+)
 	\.(?P<minor>\d+)
 	\.(?P<patch>\d+)
diff --git a/recurly/__init__.py b/recurly/__init__.py
index c4af6521..cb19c473 100644
--- a/recurly/__init__.py
+++ b/recurly/__init__.py
@@ -6,7 +6,7 @@
 import ssl
 import sys
 
-__version__ = "4.0.0"
+__version__ = "4.0.1"
 __python_version__ = ".".join(map(str, sys.version_info[:3]))
 
 USER_AGENT = "Recurly/{}; python {}; {}".format(