diff --git a/.rubocop.yml b/.rubocop.yml
index 6e7b6c7f..0a4e690d 100755
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -9,6 +9,8 @@ Style/Documentation:
 
 Layout/LineLength:
   Max: 100
+  Exclude:
+    - "**/*.gemspec"
 
 Metrics/BlockLength:
   Exclude:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d902108..3364b99d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [3.3.0] - 2023-02-15
+
+### Changed
+
+- Replace ::Ruby::OpenAI namespace with ::OpenAI - thanks [@kmcphillips](https://github.com/kmcphillips) for this work!
+- To upgrade, change `require 'ruby/openai'` to `require 'openai'` and change all references to `Ruby::OpenAI` to `OpenAI`.
+
 ## [3.2.0] - 2023-02-13
 
 ### Added
diff --git a/Gemfile.lock b/Gemfile.lock
index 36411e01..1f80c4df 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    ruby-openai (3.2.0)
+    ruby-openai (3.3.0)
       httparty (>= 0.18.1)
 
 GEM
diff --git a/README.md b/README.md
index 254ef315..e9200426 100644
--- a/README.md
+++ b/README.md
@@ -37,10 +37,7 @@ and require with:
 
 ## Upgrading
 
-The `::Ruby::OpenAI` module has been removed and all classes have been moved under the top level `::OpenAI` module.
-
-However, a transitional `::Ruby::OpenAI` module has been added with aliases to the new location of the classes and constants. For now this compatibility layer is available when the gem is loaded with `require 'ruby/openai'` or by default with bundler, but are _not_ available when the gem is loaded with `require 'openai'` or `gem 'ruby-openai', require: 'openai'`. This will be removed in future versions.
-
+The `::Ruby::OpenAI` module has been removed and all classes have been moved under the top level `::OpenAI` module. To upgrade, change `require 'ruby/openai'` to `require 'openai'` and change all references to `Ruby::OpenAI` to `OpenAI`.
 
 ## Usage
 
diff --git a/lib/openai/version.rb b/lib/openai/version.rb
index 5dd7b023..9dab4473 100644
--- a/lib/openai/version.rb
+++ b/lib/openai/version.rb
@@ -1,3 +1,3 @@
 module OpenAI
-  VERSION = "3.2.0".freeze
+  VERSION = "3.3.0".freeze
 end
diff --git a/ruby-openai.gemspec b/ruby-openai.gemspec
index 968745a6..8ed13aa2 100644
--- a/ruby-openai.gemspec
+++ b/ruby-openai.gemspec
@@ -26,4 +26,6 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_dependency "httparty", ">= 0.18.1"
+
+  spec.post_install_message = "Note if upgrading: The `::Ruby::OpenAI` module has been removed and all classes have been moved under the top level `::OpenAI` module. To upgrade, change `require 'ruby/openai'` to `require 'openai'` and change all references to `Ruby::OpenAI` to `OpenAI`."
 end
diff --git a/spec/compatibility_spec.rb b/spec/compatibility_spec.rb
index 4a3bb1d1..04191368 100644
--- a/spec/compatibility_spec.rb
+++ b/spec/compatibility_spec.rb
@@ -2,31 +2,31 @@
   context "for moved constants" do
     describe "::Ruby::OpenAI::VERSION" do
       it "is mapped to ::OpenAI::VERSION" do
-        expect(::Ruby::OpenAI::VERSION).to eq(::OpenAI::VERSION)
+        expect(Ruby::OpenAI::VERSION).to eq(OpenAI::VERSION)
       end
     end
 
     describe "::Ruby::OpenAI::Error" do
       it "is mapped to ::OpenAI::Error" do
-        expect(::Ruby::OpenAI::Error).to eq(::OpenAI::Error)
-        expect(::Ruby::OpenAI::Error.new).to be_a(::OpenAI::Error)
-        expect(::OpenAI::Error.new).to be_a(::Ruby::OpenAI::Error)
+        expect(Ruby::OpenAI::Error).to eq(OpenAI::Error)
+        expect(Ruby::OpenAI::Error.new).to be_a(OpenAI::Error)
+        expect(OpenAI::Error.new).to be_a(Ruby::OpenAI::Error)
       end
     end
 
     describe "::Ruby::OpenAI::ConfigurationError" do
       it "is mapped to ::OpenAI::ConfigurationError" do
-        expect(::Ruby::OpenAI::ConfigurationError).to eq(::OpenAI::ConfigurationError)
-        expect(::Ruby::OpenAI::ConfigurationError.new).to be_a(::OpenAI::ConfigurationError)
-        expect(::OpenAI::ConfigurationError.new).to be_a(::Ruby::OpenAI::ConfigurationError)
+        expect(Ruby::OpenAI::ConfigurationError).to eq(OpenAI::ConfigurationError)
+        expect(Ruby::OpenAI::ConfigurationError.new).to be_a(OpenAI::ConfigurationError)
+        expect(OpenAI::ConfigurationError.new).to be_a(Ruby::OpenAI::ConfigurationError)
       end
     end
 
     describe "::Ruby::OpenAI::Configuration" do
       it "is mapped to ::OpenAI::Configuration" do
-        expect(::Ruby::OpenAI::Configuration).to eq(::OpenAI::Configuration)
-        expect(::Ruby::OpenAI::Configuration.new).to be_a(::OpenAI::Configuration)
-        expect(::OpenAI::Configuration.new).to be_a(::Ruby::OpenAI::Configuration)
+        expect(Ruby::OpenAI::Configuration).to eq(OpenAI::Configuration)
+        expect(Ruby::OpenAI::Configuration.new).to be_a(OpenAI::Configuration)
+        expect(OpenAI::Configuration.new).to be_a(Ruby::OpenAI::Configuration)
       end
     end
   end