diff --git a/lib/simple_oauth/core_ext/object.rb b/lib/simple_oauth/core_ext/object.rb
index 4500e2c..c4b4e17 100644
--- a/lib/simple_oauth/core_ext/object.rb
+++ b/lib/simple_oauth/core_ext/object.rb
@@ -1,6 +1,6 @@
 major, minor, patch = RUBY_VERSION.split('.')
 
-if major.to_i == 1 && minor.to_i < 9
+if major.to_i == 1 && minor.to_i == 8 && patch.to_i <= 6
   class Object
     def tap
       yield self