1 files changed, 12 insertions, 15 deletions
diff --git a/spec/ruby/library/prime/integer/prime_spec.rb b/spec/ruby/library/prime/integer/prime_spec.rb
index 65b779e319..53de76d5ab 100644
--- a/spec/ruby/library/prime/integer/prime_spec.rb
+++ b/spec/ruby/library/prime/integer/prime_spec.rb
@@ -1,20 +1,17 @@
 require_relative '../../../spec_helper'
+require 'prime'
 
-ruby_version_is ""..."3.1" do
-  require 'prime'
-
-  describe "Integer#prime?" do
-    it "returns a true value for prime numbers" do
-      2.prime?.should be_true
-      3.prime?.should be_true
-      (2**31-1).prime?.should be_true  # 8th Mersenne prime (M8)
-    end
+describe "Integer#prime?" do
+  it "returns a true value for prime numbers" do
+    2.prime?.should be_true
+    3.prime?.should be_true
+    (2**31-1).prime?.should be_true  # 8th Mersenne prime (M8)
+  end
 
-    it "returns a false value for composite numbers" do
-      4.prime?.should be_false
-      15.prime?.should be_false
-      (2**32-1).prime?.should be_false
-      ( (2**17-1)*(2**19-1) ).prime?.should be_false  # M6*M7
-    end
+  it "returns a false value for composite numbers" do
+    4.prime?.should be_false
+    15.prime?.should be_false
+    (2**32-1).prime?.should be_false
+    ( (2**17-1)*(2**19-1) ).prime?.should be_false  # M6*M7
   end
 end