diff --git a/HISTORY.rst b/HISTORY.rst
index 7c01eb7..20e7a4e 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,3 +1,8 @@
+0.3.1 -- 2015-12-15
+-------------------
+
+- Preserve empty query strings during normalization
+
 0.3.0 -- 2015-10-20
 -------------------
 
diff --git a/rfc3986/__init__.py b/rfc3986/__init__.py
index a3aea4c..0adb74e 100644
--- a/rfc3986/__init__.py
+++ b/rfc3986/__init__.py
@@ -29,7 +29,7 @@
 __author_email__ = 'ian.cordasco@rackspace.com'
 __license__ = 'Apache v2.0'
 __copyright__ = 'Copyright 2014 Rackspace'
-__version__ = '0.3.0'
+__version__ = '0.3.1'
 
 from .api import (URIReference, uri_reference, is_valid_uri, normalize_uri,
                   urlparse)