1 files changed, 11 insertions, 8 deletions
diff --git a/spec/ruby/library/prime/integer/each_prime_spec.rb b/spec/ruby/library/prime/integer/each_prime_spec.rb
index a71296b0df..6034802e73 100644
--- a/spec/ruby/library/prime/integer/each_prime_spec.rb
+++ b/spec/ruby/library/prime/integer/each_prime_spec.rb
@@ -1,13 +1,16 @@
 require_relative '../../../spec_helper'
-require 'prime'
 
-describe "Integer.each_prime" do
-  it "is transferred to Prime.each" do
-    Prime.should_receive(:each).with(100).and_yield(2).and_yield(3).and_yield(5)
-    yielded = []
-    Integer.each_prime(100) do |prime|
-      yielded << prime
+ruby_version_is ""..."3.1" do
+  require 'prime'
+
+  describe "Integer.each_prime" do
+    it "is transferred to Prime.each" do
+      Prime.should_receive(:each).with(100).and_yield(2).and_yield(3).and_yield(5)
+      yielded = []
+      Integer.each_prime(100) do |prime|
+        yielded << prime
+      end
+      yielded.should == [2,3,5]
     end
-    yielded.should == [2,3,5]
   end
 end