diff --git a/live_ast.gemspec b/live_ast.gemspec
index 127fa71..cb67881 100644
--- a/live_ast.gemspec
+++ b/live_ast.gemspec
@@ -39,7 +39,7 @@ Gem::Specification.new do |spec|
   spec.add_development_dependency "rake", "~> 13.0"
   spec.add_development_dependency "rake-manifest", "~> 0.2.0"
   spec.add_development_dependency "rubocop", "~> 1.51"
-  spec.add_development_dependency "rubocop-minitest", "~> 0.34.2"
+  spec.add_development_dependency "rubocop-minitest", "~> 0.35.0"
   spec.add_development_dependency "rubocop-packaging", "~> 0.5.2"
   spec.add_development_dependency "rubocop-performance", "~> 1.20"
   spec.add_development_dependency "rubocop-rake", "~> 0.6.0"
diff --git a/test/full/replace_eval_test.rb b/test/full/replace_eval_test.rb
index b8652ca..be07e62 100644
--- a/test/full/replace_eval_test.rb
+++ b/test/full/replace_eval_test.rb
@@ -329,7 +329,7 @@ def test_module_eval_binding
     RUBY
 
     assert_equal 33, orig.new.value
-    assert orig.new.f.is_a?(Proc)
+    assert_kind_of Proc, orig.new.f
 
     y = 44
     ignore(y)
@@ -344,7 +344,7 @@ def test_module_eval_binding
     RUBY
 
     assert_equal 44, live.new.value
-    assert live.new.g.is_a?(Proc)
+    assert_kind_of Proc, live.new.g
 
     assert_equal no_arg_block(:lambda, "g return"),
                  live.new.g.to_ast