1 files changed, 10 insertions, 2 deletions
diff --git a/spec/ruby/core/string/dump_spec.rb b/spec/ruby/core/string/dump_spec.rb
index ebdd0167aa..817dec6c4d 100644
--- a/spec/ruby/core/string/dump_spec.rb
+++ b/spec/ruby/core/string/dump_spec.rb
@@ -19,8 +19,16 @@ describe "String#dump" do
     "foo".freeze.dump.should_not.frozen?
   end
 
-  it "returns a subclass instance" do
-    StringSpecs::MyString.new.dump.should be_an_instance_of(StringSpecs::MyString)
+  ruby_version_is ''...'3.0' do
+    it "returns a subclass instance" do
+      StringSpecs::MyString.new.dump.should be_an_instance_of(StringSpecs::MyString)
+    end
+  end
+
+  ruby_version_is '3.0' do
+    it "returns a String instance" do
+      StringSpecs::MyString.new.dump.should be_an_instance_of(String)
+    end
   end
 
   it "wraps string with \"" do