diff --git a/Changelog.md b/Changelog.md
index fc0259d..79d4b22 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,5 +1,16 @@
 # Changelog
 
+## 0.5.1 / 2022-04-10
+
+* Support Ruby 3.0 through 3.3, dropping support for 2.6 and 2.7
+  ([#83], [#90], and [#100] by [mvz])
+
+[mvz]: https://github.com/mvz
+
+[#83]: https://github.com/mvz/ghtml2pdf/pull/83
+[#90]: https://github.com/mvz/ghtml2pdf/pull/90
+[#100]: https://github.com/mvz/ghtml2pdf/pull/100
+
 ## 0.5.0 / 2022-04-10
 
 * Set output file from input file if not provided
diff --git a/README.md b/README.md
index f0b8656..226515e 100644
--- a/README.md
+++ b/README.md
@@ -34,15 +34,21 @@ and provide feedback. Also see Contributing below.
 
 Add this line to your application's Gemfile:
 
-    gem 'ghtml2pdf'
+```ruby
+gem 'ghtml2pdf'
+```
 
 And then execute:
 
-    $ bundle
+```bash
+bundle
+```
 
 Or install it yourself as:
 
-    $ gem install ghtml2pdf
+```bash
+gem install ghtml2pdf
+```
 
 You will also need to install WebKit2GTK+, the Gtk+ bindings for WebKit2,
 and GObject Introspection. You should probably also install AT-Spi 2 to
@@ -56,7 +62,9 @@ On Debian and Ubuntu, this can be accomplished by installing the packages
 
 The intended usage will be something like:
 
-    ghtml2pdf input.html output.pdf
+```bash
+ghtml2pdf input.html output.pdf
+```
 
 ## Development
 
@@ -83,10 +91,12 @@ out.
 * Try not to include changes that are irrelevant to your feature in the
   same commit.
 
-You can submit your tickets and pull requests at [GHtml2Pdf's GitHub
-repository](https://github.com/mvz/ghtml2pdf).
+You can submit your tickets and pull requests at
+[GHtml2Pdf's GitHub repository](https://github.com/mvz/ghtml2pdf).
 
 ## License
 
+Copyright © 2015–2024 [Matijs van Zuijlen](http://www.matijs.net)
+
 The gem is available as open source under the terms of the
 [MIT License](http://opensource.org/licenses/MIT).
diff --git a/lib/ghtml2pdf/version.rb b/lib/ghtml2pdf/version.rb
index 5a99a6c..a23bff2 100644
--- a/lib/ghtml2pdf/version.rb
+++ b/lib/ghtml2pdf/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module GHtml2Pdf
-  VERSION = "0.5.0"
+  VERSION = "0.5.1"
 end