diff --git a/CHANGES.md b/CHANGES.md
index cbdb19a..c13acc4 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,10 @@
+# 4.5.1
+
+* Fixes issue with uninitialized constant by adding missing `require` statement [#256](https://github.com/opentok/OpenTok-Ruby-SDK/pull/256)
+* Fixes RubyGems info by adding repo link to gemspec [#255](https://github.com/opentok/OpenTok-Ruby-SDK/pull/255)
+
+Thanks to [`@sailor`](https://github.com/sailor) for the contributions! :raised_hands:
+
 # 4.5.0
 
 * Adds support for multiple archives and records feature [#248](https://github.com/opentok/OpenTok-Ruby-SDK/pull/248)
diff --git a/lib/opentok/opentok.rb b/lib/opentok/opentok.rb
index 4e9015c..5fe26ed 100644
--- a/lib/opentok/opentok.rb
+++ b/lib/opentok/opentok.rb
@@ -11,6 +11,7 @@
 require "opentok/streams"
 require "opentok/signals"
 require "opentok/broadcasts"
+require "opentok/renders"
 
 module OpenTok
   # Contains methods for creating OpenTok sessions and generating tokens. It also includes
diff --git a/lib/opentok/version.rb b/lib/opentok/version.rb
index 52e33eb..641e8e2 100644
--- a/lib/opentok/version.rb
+++ b/lib/opentok/version.rb
@@ -1,4 +1,4 @@
 module OpenTok
   # @private
-  VERSION = '4.5.0'
+  VERSION = '4.5.1'
 end
diff --git a/opentok.gemspec b/opentok.gemspec
index 6937263..5e56a97 100644
--- a/opentok.gemspec
+++ b/opentok.gemspec
@@ -10,6 +10,7 @@ Gem::Specification.new do |spec|
   spec.description = %q{OpenTok is an API from TokBox that enables websites to weave live group video communication into their online experience. With OpenTok you have the freedom and flexibility to create the most engaging web experience for your users. This gem lets you generate sessions and tokens for OpenTok applications. It also includes support for working with OpenTok 2.0 archives. See <http://tokbox.com/opentok/platform> for more details.}
   # TODO: this homepage isn't set up just yet
   spec.homepage    = "https://opentok.github.io/opentok-ruby-sdk"
+  spec.metadata    = { "source_code_uri" => "https://github.com/opentok/OpenTok-Ruby-SDK" }
   spec.license     = "MIT"
 
   spec.files         = `git ls-files -z`.split("\x0")