diff --git a/.gemspec b/.gemspec
index 35c7597..318e31c 100644
--- a/.gemspec
+++ b/.gemspec
@@ -11,7 +11,7 @@ Gem::Specification.new do |spec|
                                  'Nick Bargnesi',
                                  'William Hayes'
                                ]
-  spec.date                  = %q{2015-12-17}
+  spec.date                  = %q{2015-12-18}
   spec.email                 = %q{abargnesi@selventa.com}
   spec.files                 = [
                                  Dir.glob('app/**/*.{json,rb,ru}'),
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 73e8bbe..bb6b4df 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,12 @@ All notable changes to openbel-api will be documented in this file. The curated
 
 This project adheres to [Semantic Versioning][Semantic Versioning].
 
+## [0.5.1][0.5.1] - 2015-12-18
+### Fixed
+- Authentication error for MongoDB user when faceting on `GET /api/evidence` ([Issue #93][93]).
+
+-----
+
 ## [0.5.0][0.5.0] - 2015-12-17
 ### Added
 - Report API version from executables (`openbel-api`, `openbel-config`) and REST API (`GET /api/version`) ([Issue #91][91]).
@@ -34,8 +40,10 @@ This project adheres to [Semantic Versioning][Semantic Versioning].
   - Retrieve equivalent namespace values from the individual.
   - Retrieve orthologous namespace values from the individual.
 
+[0.5.1]:                       https://github.com/OpenBEL/openbel-api/compare/0.5.0...0.5.1
 [0.5.0]:                       https://github.com/OpenBEL/openbel-api/compare/0.4.0...0.5.0
 [Semantic Versioning]:         http://semver.org
 [MongoDB User Authentication]: https://github.com/OpenBEL/openbel-api/wiki/Configuring-the-Evidence-Store#mongodb-user-authentication
 [91]:                          https://github.com/OpenBEL/openbel-api/issues/91
 [92]:                          https://github.com/OpenBEL/openbel-api/issues/92
+[93]:                          https://github.com/OpenBEL/openbel-api/issues/93
diff --git a/VERSION b/VERSION
index 8f0916f..4b9fcbe 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.5.0
+0.5.1