diff --git a/spec/defines/pyvenv_spec.rb b/spec/defines/pyvenv_spec.rb
index 55bfd371..b19a0317 100644
--- a/spec/defines/pyvenv_spec.rb
+++ b/spec/defines/pyvenv_spec.rb
@@ -4,8 +4,8 @@
   let (:title) { '/opt/env' }
 
   it {
-    should contain_file( '/opt/env')
-    should contain_exec( "python_virtualenv_/opt/env").with_command("pyvenv --clear  /opt/env")
+    is_expected.to contain_file( '/opt/env')
+    is_expected.to contain_exec( "python_virtualenv_/opt/env").with_command("pyvenv --clear  /opt/env")
   }
 
   describe 'when ensure' do
@@ -14,7 +14,7 @@
         :ensure => 'absent'
       }}
       it {
-        should contain_file( '/opt/env').with_ensure('absent').with_purge( true)
+        is_expected.to contain_file( '/opt/env').with_ensure('absent').with_purge( true)
       }
     end
   end
diff --git a/spec/defines/requirements_spec.rb b/spec/defines/requirements_spec.rb
index e1cdc28b..08abdbd9 100644
--- a/spec/defines/requirements_spec.rb
+++ b/spec/defines/requirements_spec.rb
@@ -30,7 +30,7 @@
             }}
           it do
             expect {
-              should compile
+              is_expected.to compile
             }.to raise_error(/root user must be used when virtualenv is system/)
           end
         end
diff --git a/spec/unit/facter/pip_version_spec.rb b/spec/unit/facter/pip_version_spec.rb
index 2c75cbf0..63a6187b 100644
--- a/spec/unit/facter/pip_version_spec.rb
+++ b/spec/unit/facter/pip_version_spec.rb
@@ -16,7 +16,7 @@
         Facter::Util::Resolution.stubs(:exec)
         Facter::Util::Resolution.expects(:which).with("pip").returns(true)
         Facter::Util::Resolution.expects(:exec).with("pip --version 2>&1").returns(pip_version_output)
-        Facter.value(:pip_version).should == "6.0.6"
+        expect(Facter.value(:pip_version)).to eq("6.0.6")
       end
     end
 
@@ -24,7 +24,7 @@
       it do
         Facter::Util::Resolution.stubs(:exec)
         Facter::Util::Resolution.expects(:which).with("pip").returns(false)
-        Facter.value(:pip_version).should == nil
+        expect(Facter.value(:pip_version)).to eq(nil)
       end
     end
 
diff --git a/spec/unit/facter/python_version_spec.rb b/spec/unit/facter/python_version_spec.rb
index 80aadae8..48ab1ede 100644
--- a/spec/unit/facter/python_version_spec.rb
+++ b/spec/unit/facter/python_version_spec.rb
@@ -20,7 +20,7 @@
         Facter::Util::Resolution.stubs(:exec)
         Facter::Util::Resolution.expects(:which).with("python").returns(true)
         Facter::Util::Resolution.expects(:exec).with("python -V 2>&1").returns(python2_version_output)
-        Facter.value(:python_version).should == "2.7.9"
+        expect(Facter.value(:python_version)).to eq("2.7.9")
       end
     end
 
@@ -28,7 +28,7 @@
       it do
         Facter::Util::Resolution.stubs(:exec)
         Facter::Util::Resolution.expects(:which).with("python").returns(false)
-        Facter.value(:python_version).should == nil
+        expect(Facter.value(:python_version)).to eq(nil)
       end
     end
 
@@ -40,7 +40,7 @@
         Facter::Util::Resolution.stubs(:exec)
         Facter::Util::Resolution.expects(:which).with("python").returns(true)
         Facter::Util::Resolution.expects(:exec).with("python -V 2>&1").returns(python2_version_output)
-        Facter.value(:python2_version).should == '2.7.9'
+        expect(Facter.value(:python2_version)).to eq('2.7.9')
       end
     end
 
@@ -51,38 +51,38 @@
         Facter::Util::Resolution.expects(:exec).with("python -V 2>&1").returns(python3_version_output)
         Facter::Util::Resolution.expects(:which).with("python2").returns(true)
         Facter::Util::Resolution.expects(:exec).with("python2 -V 2>&1").returns(python2_version_output)
-        Facter.value(:python2_version).should == '2.7.9'
+        expect(Facter.value(:python2_version)).to eq('2.7.9')
       end
     end
-    
+
     context 'returns nil when `python` is Python 3 and `python2` is absent' do
       it do
         Facter::Util::Resolution.stubs(:exec)
         Facter::Util::Resolution.expects(:which).with("python").returns(true)
         Facter::Util::Resolution.expects(:exec).with("python -V 2>&1").returns(python3_version_output)
         Facter::Util::Resolution.expects(:which).with("python2").returns(false)
-        Facter.value(:python2_version).should == nil
+        expect(Facter.value(:python2_version)).to eq(nil)
       end
     end
-    
+
     context 'returns nil when `python2` and `python` are absent' do
       it do
         Facter::Util::Resolution.stubs(:exec)
         Facter::Util::Resolution.expects(:which).with("python").returns(false)
         Facter::Util::Resolution.expects(:which).with("python2").returns(false)
-        Facter.value(:python2_version).should == nil
+        expect(Facter.value(:python2_version)).to eq(nil)
       end
     end
 
   end
- 
+
   describe "python3_version" do
     context 'returns Python 3 version when `python3` present' do
       it do
         Facter::Util::Resolution.stubs(:exec)
         Facter::Util::Resolution.expects(:which).with("python3").returns(true)
         Facter::Util::Resolution.expects(:exec).with("python3 -V 2>&1").returns(python3_version_output)
-        Facter.value(:python3_version).should == "3.3.0"
+        expect(Facter.value(:python3_version)).to eq("3.3.0")
       end
     end
 
@@ -90,7 +90,7 @@
       it do
         Facter::Util::Resolution.stubs(:exec)
         Facter::Util::Resolution.expects(:which).with("python3").returns(false)
-        Facter.value(:python3_version).should == nil
+        expect(Facter.value(:python3_version)).to eq(nil)
       end
     end
 
diff --git a/spec/unit/facter/virtualenv_version_spec.rb b/spec/unit/facter/virtualenv_version_spec.rb
index 9f1cc921..b9aac90e 100644
--- a/spec/unit/facter/virtualenv_version_spec.rb
+++ b/spec/unit/facter/virtualenv_version_spec.rb
@@ -16,7 +16,7 @@
         Facter::Util::Resolution.stubs(:exec)
         Facter::Util::Resolution.expects(:which).with("virtualenv").returns(true)
         Facter::Util::Resolution.expects(:exec).with("virtualenv --version 2>&1").returns(virtualenv_version_output)
-        Facter.value(:virtualenv_version).should == "12.0.7"
+        expect(Facter.value(:virtualenv_version)).to eq("12.0.7")
       end
     end
 
@@ -24,7 +24,7 @@
       it do
         Facter::Util::Resolution.stubs(:exec)
         Facter::Util::Resolution.expects(:which).with("virtualenv").returns(false)
-        Facter.value(:virtualenv_version).should == nil
+        expect(Facter.value(:virtualenv_version)).to eq(nil)
       end
     end