diff --git a/lib/rubygems/specification.rb b/lib/rubygems/specification.rb
index f7012f1efd..b47d7e8769 100644
--- a/lib/rubygems/specification.rb
+++ b/lib/rubygems/specification.rb
@@ -2075,7 +2075,8 @@ class Gem::Specification < Gem::BasicSpecification
   end
 
   ##
-  # Duplicates array_attributes from +other_spec+ so state isn't shared.
+  # Duplicates Array and Gem::Requirement attributes from +other_spec+ so state isn't shared.
+  #
 
   def initialize_copy(other_spec)
     self.class.array_attributes.each do |name|
@@ -2097,6 +2098,9 @@ class Gem::Specification < Gem::BasicSpecification
         raise e
       end
     end
+
+    @required_ruby_version = other_spec.required_ruby_version.dup
+    @required_rubygems_version = other_spec.required_rubygems_version.dup
   end
 
   def base_dir
diff --git a/test/rubygems/test_gem_specification.rb b/test/rubygems/test_gem_specification.rb
index ca5e8cef3b..3c37f08efa 100644
--- a/test/rubygems/test_gem_specification.rb
+++ b/test/rubygems/test_gem_specification.rb
@@ -1194,10 +1194,13 @@ dependencies: []
     assert_same spec.bindir, dup_spec.bindir
 
     assert_equal ">= 0", spec.required_ruby_version.to_s
-    assert_same spec.required_ruby_version, dup_spec.required_ruby_version
+    assert_equal spec.required_ruby_version, dup_spec.required_ruby_version
+    refute_same spec.required_ruby_version, dup_spec.required_ruby_version
 
     assert_equal ">= 0", spec.required_rubygems_version.to_s
-    assert_same spec.required_rubygems_version,
+    assert_equal spec.required_rubygems_version,
+                 dup_spec.required_rubygems_version
+    refute_same spec.required_rubygems_version,
                 dup_spec.required_rubygems_version
   end