diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 7564131..3a1750d 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby-version: ['3.1']
+        ruby-version: ['3.2']
     steps:
     - uses: actions/checkout@v5
     - name: Set up Ruby
diff --git a/Gemfile b/Gemfile
index 3d9f833..83b4947 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,6 +6,6 @@ gemspec
 
 gem 'pry'
 gem 'rake'
-gem 'rubocop', '~> 1.43'
-gem "simplecov", require: false
-gem "simplecov-cobertura", require: false
+gem 'rubocop', '~> 1.81'
+gem 'simplecov', require: false
+gem 'simplecov-cobertura', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 5c96a36..c165d83 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 PATH
   remote: .
   specs:
-    ontologies_api_client (2.7.1)
-      activesupport (= 7.2.2.1)
+    ontologies_api_client (2.8.0)
+      activesupport (= 8.0.3)
       addressable (~> 2.8)
       excon
       faraday
@@ -15,7 +15,7 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (7.2.2.1)
+    activesupport (8.0.3)
       base64
       benchmark (>= 0.3)
       bigdecimal
@@ -27,6 +27,7 @@ GEM
       minitest (>= 5.1)
       securerandom (>= 0.3)
       tzinfo (~> 2.0, >= 2.0.5)
+      uri (>= 0.13.1)
     addressable (2.8.7)
       public_suffix (>= 2.0.2, < 7.0)
     ast (2.4.3)
@@ -61,13 +62,13 @@ GEM
     logger (1.7.0)
     lz4-ruby (0.3.3)
     method_source (1.1.0)
-    minitest (5.26.0)
+    minitest (5.26.2)
     minitest-hooks (1.5.2)
       minitest (> 5.3)
     multi_json (1.17.0)
     multipart-post (2.4.1)
-    net-http (0.7.0)
-      uri
+    net-http (0.8.0)
+      uri (>= 0.11.1)
     oj (3.16.12)
       bigdecimal (>= 3.0)
       ostruct (>= 0.2)
@@ -97,7 +98,7 @@ GEM
       rubocop-ast (>= 1.47.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 4.0)
-    rubocop-ast (1.47.1)
+    rubocop-ast (1.48.0)
       parser (>= 3.3.7.2)
       prism (~> 1.4)
     ruby-progressbar (1.13.0)
@@ -119,19 +120,19 @@ GEM
     uri (1.1.1)
 
 PLATFORMS
-  arm64-darwin-23
+  arm64-darwin-24
   ruby
 
 DEPENDENCIES
   faraday-follow_redirects (~> 0.3)
-  minitest (~> 5.25)
+  minitest (~> 5.26)
   minitest-hooks (~> 1.5)
   ontologies_api_client!
   pry
   rake
-  rubocop (~> 1.43)
+  rubocop (~> 1.81)
   simplecov
   simplecov-cobertura
 
 BUNDLED WITH
-   2.6.9
+   2.7.2
diff --git a/LICENSE.txt b/LICENSE.txt
index 8b0d9e2..7edfb51 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright (c) 2025, The Board of Trustees of Leland Stanford Junior University
+Copyright (c) 2026, The Board of Trustees of Leland Stanford Junior University
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without modification, are
diff --git a/README.md b/README.md
index 4feda27..bb9a762 100644
--- a/README.md
+++ b/README.md
@@ -151,6 +151,10 @@ Resources that should have save, update, and delete methods will need to include
 
 For questions please email [support@bioontology.org](support@bioontology.org.)
 
-## License
+## Contributors
+<a href="https://github.com/ncbo/ontologies_api_ruby_client/graphs/contributors">
+  <img src="https://contrib.rocks/image?repo=ncbo/ontologies_api_ruby_client" />
+</a>
 
-This project is licensed under the [FreeBSD License](LICENSE.txt) © 2025 The Board of Trustees of Leland Stanford Junior University.
\ No newline at end of file
+## License
+The 2-Clause BSD License. See [LICENSE.txt](LICENSE.txt) for more information.
diff --git a/lib/ontologies_api_client/version.rb b/lib/ontologies_api_client/version.rb
index 0029957..b4ad266 100644
--- a/lib/ontologies_api_client/version.rb
+++ b/lib/ontologies_api_client/version.rb
@@ -2,6 +2,6 @@
 
 module LinkedData
   module Client
-    VERSION = '2.7.1'
+    VERSION = '2.8.0'
   end
 end
diff --git a/ontologies_api_client.gemspec b/ontologies_api_client.gemspec
index a95da6c..0bb5ebf 100644
--- a/ontologies_api_client.gemspec
+++ b/ontologies_api_client.gemspec
@@ -18,7 +18,7 @@ Gem::Specification.new do |gem|
   gem.require_paths = ['lib']
   gem.version       = LinkedData::Client::VERSION
 
-  gem.add_dependency('activesupport', '7.2.2.1')
+  gem.add_dependency('activesupport', '8.0.3')
   gem.add_dependency('addressable', '~> 2.8')
   gem.add_dependency('excon')
   gem.add_dependency('faraday')
@@ -29,6 +29,6 @@ Gem::Specification.new do |gem|
   gem.add_dependency('oj')
 
   gem.add_development_dependency('faraday-follow_redirects', '~> 0.3')
-  gem.add_development_dependency('minitest', '~> 5.25')
+  gem.add_development_dependency('minitest', '~> 5.26')
   gem.add_development_dependency('minitest-hooks', '~> 1.5')
 end
diff --git a/test/models/test_class.rb b/test/models/test_class.rb
index c0eba57..5b597df 100644
--- a/test/models/test_class.rb
+++ b/test/models/test_class.rb
@@ -36,6 +36,8 @@ def test_purl_owl
 
   # Test PURL generation for a class in a UMLS format ontology
   def test_purl_umls
+    skip 'Disable until #41 is fixed: https://github.com/ncbo/ontologies_api_ruby_client/issues/41'
+
     cls = LinkedData::Client::Models::Class.find(
       'http://purl.bioontology.org/ontology/SNOMEDCT/64572001',
       'https://bioportal.bioontology.org/ontologies/SNOMEDCT'
@@ -53,6 +55,8 @@ def test_purl_umls
 
   # Test PURL generation for a class in an OBO format ontology
   def test_purl_obo
+    skip 'Disable until #41 is fixed: https://github.com/ncbo/ontologies_api_ruby_client/issues/41'
+
     cls = LinkedData::Client::Models::Class.find(
       'http://purl.obolibrary.org/obo/DOID_4',
       'https://bioportal.bioontology.org/ontologies/DOID'