1 files changed, 5 insertions, 3 deletions
diff --git a/spec/ruby/library/stringio/shared/write.rb b/spec/ruby/library/stringio/shared/write.rb
index 28683e3cb1..dc5e1442ec 100644
--- a/spec/ruby/library/stringio/shared/write.rb
+++ b/spec/ruby/library/stringio/shared/write.rb
@@ -52,9 +52,11 @@ describe :stringio_write_string, shared: true do
     end
   end
 
-  it "does not taint self when the passed argument is tainted" do
-    @io.send(@method, "test".taint)
-    @io.tainted?.should be_false
+  ruby_version_is ""..."2.8" do
+    it "does not taint self when the passed argument is tainted" do
+      @io.send(@method, "test".taint)
+      @io.tainted?.should be_false
+    end
   end
 end