4 files changed, 11 insertions, 13 deletions
diff --git a/spec/ruby/core/true/dup_spec.rb b/spec/ruby/core/true/dup_spec.rb
index 351457ed22..2628f6d374 100644
--- a/spec/ruby/core/true/dup_spec.rb
+++ b/spec/ruby/core/true/dup_spec.rb
@@ -2,6 +2,6 @@ require_relative '../../spec_helper'
 
 describe "TrueClass#dup" do
   it "returns self" do
-    true.dup.should equal(true)
+    true.dup.should.equal?(true)
   end
 end
diff --git a/spec/ruby/core/true/singleton_method_spec.rb b/spec/ruby/core/true/singleton_method_spec.rb
index c06793850f..58689fb6e5 100644
--- a/spec/ruby/core/true/singleton_method_spec.rb
+++ b/spec/ruby/core/true/singleton_method_spec.rb
@@ -1,15 +1,13 @@
 require_relative '../../spec_helper'
 
 describe "TrueClass#singleton_method" do
-  ruby_version_is '3.3' do
-    it "raises regardless of whether TrueClass defines the method" do
-      -> { true.singleton_method(:foo) }.should raise_error(NameError)
-      begin
-        def (true).foo; end
-        -> { true.singleton_method(:foo) }.should raise_error(NameError)
-      ensure
-        TrueClass.send(:remove_method, :foo)
-      end
+  it "raises regardless of whether TrueClass defines the method" do
+    -> { true.singleton_method(:foo) }.should.raise(NameError)
+    begin
+      def (true).foo; end
+      -> { true.singleton_method(:foo) }.should.raise(NameError)
+    ensure
+      TrueClass.send(:remove_method, :foo)
     end
   end
 end
diff --git a/spec/ruby/core/true/to_s_spec.rb b/spec/ruby/core/true/to_s_spec.rb
index fa1b53a580..2c6f3889e9 100644
--- a/spec/ruby/core/true/to_s_spec.rb
+++ b/spec/ruby/core/true/to_s_spec.rb
@@ -10,6 +10,6 @@ describe "TrueClass#to_s" do
   end
 
   it "always returns the same string" do
-    true.to_s.should equal(true.to_s)
+    true.to_s.should.equal?(true.to_s)
   end
 end
diff --git a/spec/ruby/core/true/trueclass_spec.rb b/spec/ruby/core/true/trueclass_spec.rb
index 02af649d09..1c1a0ddbe2 100644
--- a/spec/ruby/core/true/trueclass_spec.rb
+++ b/spec/ruby/core/true/trueclass_spec.rb
@@ -4,12 +4,12 @@ describe "TrueClass" do
   it ".allocate raises a TypeError" do
     -> do
       TrueClass.allocate
-    end.should raise_error(TypeError)
+    end.should.raise(TypeError)
   end
 
   it ".new is undefined" do
     -> do
       TrueClass.new
-    end.should raise_error(NoMethodError)
+    end.should.raise(NoMethodError)
   end
 end