diff --git a/Gemfile b/Gemfile
index f4baf9a9..40e1e48b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,7 +4,7 @@ source 'https://rubygems.org'
 
 gemspec
 
-gem 'oauth2'
+gem 'oauth2', '>= 2.0.12'
 gem 'typhoeus'
 gem 'warning'
 gem 'zeitwerk'
diff --git a/Gemfile.lock b/Gemfile.lock
index c8920166..7bd445fa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -75,20 +75,21 @@ GEM
     mutex_m (0.3.0)
     net-http (0.6.0)
       uri
-    oauth2 (2.0.9)
-      faraday (>= 0.17.3, < 3.0)
-      jwt (>= 1.0, < 3.0)
+    oauth2 (2.0.12)
+      faraday (>= 0.17.3, < 4.0)
+      jwt (>= 1.0, < 4.0)
+      logger (~> 1.2)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 4)
-      snaky_hash (~> 2.0)
-      version_gem (~> 1.1)
+      snaky_hash (~> 2.0, >= 2.0.3)
+      version_gem (>= 1.1.8, < 3)
     parallel (1.27.0)
     parser (3.3.8.0)
       ast (~> 2.4.1)
       racc
     prism (1.4.0)
     racc (1.8.1)
-    rack (3.1.14)
+    rack (3.1.15)
     rainbow (3.1.1)
     rake (13.2.1)
     rb-fsevent (0.11.2)
@@ -130,9 +131,9 @@ GEM
       simplecov (~> 0.19)
     simplecov-html (0.13.1)
     simplecov_json_formatter (0.1.4)
-    snaky_hash (2.0.1)
-      hashie
-      version_gem (~> 1.1, >= 1.1.1)
+    snaky_hash (2.0.3)
+      hashie (>= 0.1.0, < 6)
+      version_gem (>= 1.1.8, < 3)
     steep (1.7.1)
       activesupport (>= 5.1)
       concurrent-ruby (>= 1.1.10)
@@ -161,7 +162,7 @@ GEM
       concurrent-ruby (~> 1.0)
     unicode-display_width (2.6.0)
     uri (1.0.3)
-    version_gem (1.1.7)
+    version_gem (1.1.8)
     warning (1.5.0)
     zeitwerk (2.6.18)
 
@@ -174,7 +175,7 @@ DEPENDENCIES
   minitest
   minitest-hooks
   minitest-reporters
-  oauth2
+  oauth2 (>= 2.0.12)
   rake
   rbs
   rubocop
diff --git a/lib/patch.rb b/lib/patch.rb
deleted file mode 100644
index e46bffed..00000000
--- a/lib/patch.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-# frozen_string_literal: true
-
-require 'oauth2'
-
-module OAuth2
-  module Strategy
-    # rubocop:disable Style/Documentation
-    module AssertionPatch
-      private
-
-      # noinspection RbsMissingTypeSignature
-      def build_assertion(claims, opts)
-        unless opts.is_a?(Hash) && opts.key?(:algorithm) && opts.key?(:key)
-          raise ArgumentError,
-                'encoding_opts must include :algorithm and :key'
-        end
-
-        headers = opts[:kid] ? { kid: opts[:kid] } : {}
-        JWT.encode(claims, opts[:key], opts[:algorithm], headers)
-      end
-    end
-    # rubocop:enable Style/Documentation
-
-    class Assertion < Base
-      prepend AssertionPatch
-    end
-  end
-end
diff --git a/lib/zitadel_client.rb b/lib/zitadel_client.rb
index b0603607..d3c1abda 100644
--- a/lib/zitadel_client.rb
+++ b/lib/zitadel_client.rb
@@ -2,7 +2,6 @@
 
 require 'zeitwerk'
 require 'warning'
-require_relative 'patch'
 
 Warning.ignore(:method_redefined, __dir__)