diff --git a/spec/ruby/core/integer/coerce_spec.rb b/spec/ruby/core/integer/coerce_spec.rb
index f1f32560323924..c967b0dea31a7a 100644
--- a/spec/ruby/core/integer/coerce_spec.rb
+++ b/spec/ruby/core/integer/coerce_spec.rb
@@ -1,104 +1,107 @@
 require_relative '../../spec_helper'
 
-require 'bigdecimal'
-
-describe "Integer#coerce" do
-  context "fixnum" do
-    describe "when given a Fixnum" do
-      it "returns an array containing two Fixnums" do
-        1.coerce(2).should == [2, 1]
-        1.coerce(2).map { |i| i.class }.should == [Integer, Integer]
-      end
-    end
+ruby_version_is ""..."3.4" do
 
-    describe "when given a String" do
-      it "raises an ArgumentError when trying to coerce with a non-number String" do
-        -> { 1.coerce(":)") }.should raise_error(ArgumentError)
+  require 'bigdecimal'
+
+  describe "Integer#coerce" do
+    context "fixnum" do
+      describe "when given a Fixnum" do
+        it "returns an array containing two Fixnums" do
+          1.coerce(2).should == [2, 1]
+          1.coerce(2).map { |i| i.class }.should == [Integer, Integer]
+        end
       end
 
-      it "returns  an array containing two Floats" do
-        1.coerce("2").should == [2.0, 1.0]
-        1.coerce("-2").should == [-2.0, 1.0]
+      describe "when given a String" do
+        it "raises an ArgumentError when trying to coerce with a non-number String" do
+          -> { 1.coerce(":)") }.should raise_error(ArgumentError)
+        end
+
+        it "returns  an array containing two Floats" do
+          1.coerce("2").should == [2.0, 1.0]
+          1.coerce("-2").should == [-2.0, 1.0]
+        end
       end
-    end
 
-    it "raises a TypeError when trying to coerce with nil" do
-      -> { 1.coerce(nil) }.should raise_error(TypeError)
-    end
+      it "raises a TypeError when trying to coerce with nil" do
+        -> { 1.coerce(nil) }.should raise_error(TypeError)
+      end
 
-    it "tries to convert the given Object into a Float by using #to_f" do
-      (obj = mock('1.0')).should_receive(:to_f).and_return(1.0)
-      2.coerce(obj).should == [1.0, 2.0]
+      it "tries to convert the given Object into a Float by using #to_f" do
+        (obj = mock('1.0')).should_receive(:to_f).and_return(1.0)
+        2.coerce(obj).should == [1.0, 2.0]
 
-      (obj = mock('0')).should_receive(:to_f).and_return('0')
-      -> { 2.coerce(obj).should == [1.0, 2.0] }.should raise_error(TypeError)
-    end
+        (obj = mock('0')).should_receive(:to_f).and_return('0')
+        -> { 2.coerce(obj).should == [1.0, 2.0] }.should raise_error(TypeError)
+      end
 
-    it "raises a TypeError when given an Object that does not respond to #to_f" do
-      -> { 1.coerce(mock('x'))  }.should raise_error(TypeError)
-      -> { 1.coerce(1..4)       }.should raise_error(TypeError)
-      -> { 1.coerce(:test)      }.should raise_error(TypeError)
+      it "raises a TypeError when given an Object that does not respond to #to_f" do
+        -> { 1.coerce(mock('x'))  }.should raise_error(TypeError)
+        -> { 1.coerce(1..4)       }.should raise_error(TypeError)
+        -> { 1.coerce(:test)      }.should raise_error(TypeError)
+      end
     end
-  end
 
-  context "bignum" do
-    it "coerces other to a Bignum and returns [other, self] when passed a Fixnum" do
-      a = bignum_value
-      ary = a.coerce(2)
+    context "bignum" do
+      it "coerces other to a Bignum and returns [other, self] when passed a Fixnum" do
+        a = bignum_value
+        ary = a.coerce(2)
 
-      ary[0].should be_kind_of(Integer)
-      ary[1].should be_kind_of(Integer)
-      ary.should == [2, a]
-    end
+        ary[0].should be_kind_of(Integer)
+        ary[1].should be_kind_of(Integer)
+        ary.should == [2, a]
+      end
 
-    it "returns [other, self] when passed a Bignum" do
-      a = bignum_value
-      b = bignum_value
-      ary = a.coerce(b)
+      it "returns [other, self] when passed a Bignum" do
+        a = bignum_value
+        b = bignum_value
+        ary = a.coerce(b)
 
-      ary[0].should be_kind_of(Integer)
-      ary[1].should be_kind_of(Integer)
-      ary.should == [b, a]
-    end
+        ary[0].should be_kind_of(Integer)
+        ary[1].should be_kind_of(Integer)
+        ary.should == [b, a]
+      end
 
-    it "raises a TypeError when not passed a Fixnum or Bignum" do
-      a = bignum_value
+      it "raises a TypeError when not passed a Fixnum or Bignum" do
+        a = bignum_value
 
-      -> { a.coerce(nil)         }.should raise_error(TypeError)
-      -> { a.coerce(mock('str')) }.should raise_error(TypeError)
-      -> { a.coerce(1..4)        }.should raise_error(TypeError)
-      -> { a.coerce(:test)       }.should raise_error(TypeError)
-    end
+        -> { a.coerce(nil)         }.should raise_error(TypeError)
+        -> { a.coerce(mock('str')) }.should raise_error(TypeError)
+        -> { a.coerce(1..4)        }.should raise_error(TypeError)
+        -> { a.coerce(:test)       }.should raise_error(TypeError)
+      end
 
-    it "coerces both values to Floats and returns [other, self] when passed a Float" do
-      a = bignum_value
-      a.coerce(1.2).should == [1.2, a.to_f]
-    end
+      it "coerces both values to Floats and returns [other, self] when passed a Float" do
+        a = bignum_value
+        a.coerce(1.2).should == [1.2, a.to_f]
+      end
 
-    it "coerces both values to Floats and returns [other, self] when passed a String" do
-      a = bignum_value
-      a.coerce("123").should == [123.0, a.to_f]
-    end
+      it "coerces both values to Floats and returns [other, self] when passed a String" do
+        a = bignum_value
+        a.coerce("123").should == [123.0, a.to_f]
+      end
 
-    it "calls #to_f to coerce other to a Float" do
-      b = mock("bignum value")
-      b.should_receive(:to_f).and_return(1.2)
+      it "calls #to_f to coerce other to a Float" do
+        b = mock("bignum value")
+        b.should_receive(:to_f).and_return(1.2)
 
-      a = bignum_value
-      ary = a.coerce(b)
+        a = bignum_value
+        ary = a.coerce(b)
 
-      ary.should == [1.2, a.to_f]
+        ary.should == [1.2, a.to_f]
+      end
     end
-  end
 
-  context "bigdecimal" do
-    it "produces Floats" do
-      x, y = 3.coerce(BigDecimal("3.4"))
-      x.class.should == Float
-      x.should == 3.4
-      y.class.should == Float
-      y.should == 3.0
+    context "bigdecimal" do
+      it "produces Floats" do
+        x, y = 3.coerce(BigDecimal("3.4"))
+        x.class.should == Float
+        x.should == 3.4
+        y.class.should == Float
+        y.should == 3.0
+      end
     end
-  end
 
+  end
 end
diff --git a/spec/ruby/core/time/at_spec.rb b/spec/ruby/core/time/at_spec.rb
index 0459589f0192a9..25056f20115722 100644
--- a/spec/ruby/core/time/at_spec.rb
+++ b/spec/ruby/core/time/at_spec.rb
@@ -32,10 +32,12 @@
       t2.nsec.should == t.nsec
     end
 
-    describe "passed BigDecimal" do
-      it "doesn't round input value" do
-        require 'bigdecimal'
-        Time.at(BigDecimal('1.1')).to_f.should == 1.1
+    ruby_version_is ""..."3.4" do
+      describe "passed BigDecimal" do
+        it "doesn't round input value" do
+          require 'bigdecimal'
+          Time.at(BigDecimal('1.1')).to_f.should == 1.1
+        end
       end
     end
 
diff --git a/spec/ruby/library/bigmath/log_spec.rb b/spec/ruby/library/bigmath/log_spec.rb
index 2ffbf8b6b9cbdf..22df38bb294ae0 100644
--- a/spec/ruby/library/bigmath/log_spec.rb
+++ b/spec/ruby/library/bigmath/log_spec.rb
@@ -1,10 +1,13 @@
 require_relative '../../spec_helper'
-require 'bigdecimal'
 
-describe "BigDecimal#log" do
-  it "handles high-precision Rational arguments" do
-    result = BigDecimal('0.22314354220170971436137296411949880462556361100856391620766259404746040597133837784E0')
-    r = Rational(1_234_567_890, 987_654_321)
-    BigMath.log(r, 50).should == result
+ruby_version_is ""..."3.4" do
+  require 'bigdecimal'
+
+  describe "BigDecimal#log" do
+    it "handles high-precision Rational arguments" do
+      result = BigDecimal('0.22314354220170971436137296411949880462556361100856391620766259404746040597133837784E0')
+      r = Rational(1_234_567_890, 987_654_321)
+      BigMath.log(r, 50).should == result
+    end
   end
 end
diff --git a/spec/ruby/shared/rational/coerce.rb b/spec/ruby/shared/rational/coerce.rb
index ccc8901ba0a76c..1650668fe6e940 100644
--- a/spec/ruby/shared/rational/coerce.rb
+++ b/spec/ruby/shared/rational/coerce.rb
@@ -1,34 +1,37 @@
 require_relative '../../spec_helper'
 
-require 'bigdecimal'
+ruby_version_is ""..."3.4" do
 
-describe :rational_coerce, shared: true do
-  it "returns the passed argument, self as Float, when given a Float" do
-    result = Rational(3, 4).coerce(1.0)
-    result.should == [1.0, 0.75]
-    result.first.is_a?(Float).should be_true
-    result.last.is_a?(Float).should be_true
-  end
+  require 'bigdecimal'
 
-  it "returns the passed argument, self as Rational, when given an Integer" do
-    result = Rational(3, 4).coerce(10)
-    result.should == [Rational(10, 1), Rational(3, 4)]
-    result.first.is_a?(Rational).should be_true
-    result.last.is_a?(Rational).should be_true
-  end
+  describe :rational_coerce, shared: true do
+    it "returns the passed argument, self as Float, when given a Float" do
+      result = Rational(3, 4).coerce(1.0)
+      result.should == [1.0, 0.75]
+      result.first.is_a?(Float).should be_true
+      result.last.is_a?(Float).should be_true
+    end
 
-  it "coerces to Rational, when given a Complex" do
-    Rational(3, 4).coerce(Complex(5)).should == [Rational(5, 1), Rational(3, 4)]
-    Rational(12, 4).coerce(Complex(5, 1)).should == [Complex(5, 1), Complex(3)]
-  end
+    it "returns the passed argument, self as Rational, when given an Integer" do
+      result = Rational(3, 4).coerce(10)
+      result.should == [Rational(10, 1), Rational(3, 4)]
+      result.first.is_a?(Rational).should be_true
+      result.last.is_a?(Rational).should be_true
+    end
 
-  it "returns [argument, self] when given a Rational" do
-    Rational(3, 7).coerce(Rational(9, 2)).should == [Rational(9, 2), Rational(3, 7)]
-  end
+    it "coerces to Rational, when given a Complex" do
+      Rational(3, 4).coerce(Complex(5)).should == [Rational(5, 1), Rational(3, 4)]
+      Rational(12, 4).coerce(Complex(5, 1)).should == [Complex(5, 1), Complex(3)]
+    end
+
+    it "returns [argument, self] when given a Rational" do
+      Rational(3, 7).coerce(Rational(9, 2)).should == [Rational(9, 2), Rational(3, 7)]
+    end
 
-  it "raises an error when passed a BigDecimal" do
-    -> {
-      Rational(500, 3).coerce(BigDecimal('166.666666666'))
-    }.should raise_error(TypeError, /BigDecimal can't be coerced into Rational/)
+    it "raises an error when passed a BigDecimal" do
+      -> {
+        Rational(500, 3).coerce(BigDecimal('166.666666666'))
+      }.should raise_error(TypeError, /BigDecimal can't be coerced into Rational/)
+    end
   end
 end