diff --git a/config/packaging.yml b/config/packaging.yml
index 57697632c..9d7dd2cb9 100644
--- a/config/packaging.yml
+++ b/config/packaging.yml
@@ -170,6 +170,10 @@ redis_store:
 riverbed_appinternals_agent:
   name: Riverbed Appinternals Agent
 
+ruby:
+  name: Ruby
+  release_notes: 'https://www.ruby-lang.org/en/downloads/releases'
+
 sealights_agent:
   name: SeaLights Agent
 
diff --git a/config/ruby.yml b/config/ruby.yml
index 40287d422..94541f7ee 100644
--- a/config/ruby.yml
+++ b/config/ruby.yml
@@ -15,5 +15,5 @@
 
 # Configuration for Ruby
 ---
-version: 3.1.+
+version: 3.2.+
 repository_root: https://raw.githubusercontent.com/cloudfoundry/ruby-buildpack/master/java-index
diff --git a/lib/java_buildpack/util/filtering_pathname.rb b/lib/java_buildpack/util/filtering_pathname.rb
index 133b7987c..dd04d77a7 100644
--- a/lib/java_buildpack/util/filtering_pathname.rb
+++ b/lib/java_buildpack/util/filtering_pathname.rb
@@ -83,10 +83,6 @@ def ===(other)
         @pathname === comparison_target(other) # rubocop:disable Style/CaseEquality
       end
 
-      # Dispatch superclass methods via method_missing.
-      undef_method :taint
-      undef_method :untaint
-
       # @see Pathname.
       def +(other)
         filtered_pathname(@pathname + other)
@@ -104,7 +100,7 @@ def entries
 
       # @see Pathname.
       def open(mode = nil, *args, **kwargs, &block)
-        check_mutable if mode =~ /[wa]/
+        check_mutable if /[wa]/ =~ mode.to_s
         delegate.open(mode, *args, **kwargs, &block)
       end
 
@@ -150,7 +146,7 @@ def glob(flags = 0)
       private
 
       MUTATORS = %i[chmod chown delete lchmod lchown make_link make_symlink mkdir mkpath rename rmdir rmtree taint
-                    unlink untaint].to_set.freeze
+                    unlink].to_set.freeze
 
       private_constant :MUTATORS
 
diff --git a/spec/java_buildpack/util/filtering_pathname_spec.rb b/spec/java_buildpack/util/filtering_pathname_spec.rb
index 93cd3634e..730cf66be 100644
--- a/spec/java_buildpack/util/filtering_pathname_spec.rb
+++ b/spec/java_buildpack/util/filtering_pathname_spec.rb
@@ -380,24 +380,6 @@
     mutable_target.unlink
   end
 
-  it 'raises error if untaint is called on an immutable instance' do
-    expect { immutable_target.untaint }.to raise_error(/FilteringPathname is immutable/)
-  end
-
-  it 'delegates if untaint is called on a mutable instance' do
-    allow(app_dir).to receive(:untaint)
-    mutable_target.untaint
-  end
-
-  it 'raises error if taint is called on an immutable instance' do
-    expect { immutable_target.taint }.to raise_error(/FilteringPathname is immutable/)
-  end
-
-  it 'delegates if taint is called on a mutable instance' do
-    allow(app_dir).to receive(:taint)
-    mutable_target.taint
-  end
-
   it 'raises error if mkpath is called on an immutable instance' do
     expect { immutable_target.mkpath }.to raise_error(/FilteringPathname is immutable/)
   end