diff --git a/Gemfile b/Gemfile
index 8c6384f04..22edfd4fb 100644
--- a/Gemfile
+++ b/Gemfile
@@ -23,8 +23,11 @@ group :test do
 end
 
 group :acceptance do
-  # Litmus has dependencies which require Ruby 2.5 (Puppet 6) or above.
-  gem 'puppet_litmus' if Gem::Version.new(RUBY_VERSION.dup) >= Gem::Version.new('2.5.0')
+  if Gem::Version.new(RUBY_VERSION.dup) >= Gem::Version.new('2.5.0')
+    # Litmus has dependencies which require Ruby 2.5 (Puppet 6) or above.
+    gem 'puppet_litmus', '~> 0.11', '>= 0.11.1'
+    gem 'net-ssh', '~> 5.2'
+  end
 end
 
 group :development do
diff --git a/spec/acceptance/emit_json_options_spec.rb b/spec/acceptance/emit_json_options_spec.rb
index b6da4bf8a..3c8663583 100644
--- a/spec/acceptance/emit_json_options_spec.rb
+++ b/spec/acceptance/emit_json_options_spec.rb
@@ -49,7 +49,7 @@
     { :title => '--emit-json-stdout', :cmd_line => '--emit-json-stdout' }
   ].each do |testcase|
     it "should emit JSON to stdout when using #{testcase[:title]}" do
-      output = PuppetLitmus::Serverspec.run_shell("puppet strings generate #{testcase[:cmd_line]} \"#{@test_module_path}/lib/puppet/parser/functions/function3x.rb\"").stdout.chomp
+      output = PuppetLitmus::PuppetHelpers.run_shell("puppet strings generate #{testcase[:cmd_line]} \"#{@test_module_path}/lib/puppet/parser/functions/function3x.rb\"").stdout.chomp
       expect(JSON.parse(output)).to eq(expected)
     end
   end
@@ -61,7 +61,7 @@
     it "should write JSON to a file when using #{testcase[:title]}" do
       tmpfile = File.join(@remote_tmp_path, 'json_output.json')
       cmd = "puppet strings generate #{testcase[:cmd_line].gsub('TMPFILE', tmpfile)} \"#{@test_module_path}/lib/puppet/parser/functions/function3x.rb\""
-      PuppetLitmus::Serverspec.run_shell(cmd)
+      PuppetLitmus::PuppetHelpers.run_shell(cmd)
       output = JSON.parse(file(tmpfile).content)
       expect(output).to eq(expected)
     end
diff --git a/spec/acceptance/generate_markdown_spec.rb b/spec/acceptance/generate_markdown_spec.rb
index fbb265856..ac4c749db 100644
--- a/spec/acceptance/generate_markdown_spec.rb
+++ b/spec/acceptance/generate_markdown_spec.rb
@@ -35,13 +35,13 @@ class { "test": }
 
   it 'should render Markdown to stdout when using --format markdown' do
     skip('This test is broken. Does not output to STDOUT by default.')
-    output = PuppetLitmus::Serverspec.run_shell("puppet strings generate --format markdown \"#{@test_module_path}/manifests/init.pp\"").stdout.chomp
+    output = PuppetLitmus::PuppetHelpers.run_shell("puppet strings generate --format markdown \"#{@test_module_path}/manifests/init.pp\"").stdout.chomp
     expect(output).to eq(expected)
   end
 
   it 'should write Markdown to a file when using --format markdown and --out' do
     tmpfile = File.join(@remote_tmp_path, 'md_output.md')
-    remote = PuppetLitmus::Serverspec.run_shell("puppet strings generate --format markdown --out \"#{tmpfile}\" \"#{@test_module_path}/manifests/init.pp\"")
+    remote = PuppetLitmus::PuppetHelpers.run_shell("puppet strings generate --format markdown --out \"#{tmpfile}\" \"#{@test_module_path}/manifests/init.pp\"")
     expect(file(tmpfile)).to contain expected
   end
 end
diff --git a/spec/acceptance/running_strings_generate_spec.rb b/spec/acceptance/running_strings_generate_spec.rb
index cd35352d6..c51e56e31 100644
--- a/spec/acceptance/running_strings_generate_spec.rb
+++ b/spec/acceptance/running_strings_generate_spec.rb
@@ -4,10 +4,10 @@
 describe 'Generating module documentation using generate action' do
   before :all do
     # TODO: Linux only
-    @sut_work_dir = PuppetLitmus::Serverspec.run_shell("pwd").stdout.chomp
+    @sut_work_dir = PuppetLitmus::PuppetHelpers.run_shell("pwd").stdout.chomp
 
     test_module_path = sut_module_path(/Module test/)
-    PuppetLitmus::Serverspec.run_shell("puppet strings generate \"#{test_module_path}/**/*.{rb,pp}\"")
+    PuppetLitmus::PuppetHelpers.run_shell("puppet strings generate \"#{test_module_path}/**/*.{rb,pp}\"")
   end
 
   def expect_file_contain(path, expected_contents)
diff --git a/spec/spec_helper_acceptance_local.rb b/spec/spec_helper_acceptance_local.rb
index 50b0a3392..cd90ed8c2 100644
--- a/spec/spec_helper_acceptance_local.rb
+++ b/spec/spec_helper_acceptance_local.rb
@@ -1,5 +1,5 @@
 def sut_module_path(module_regex)
-  modules = JSON.parse(PuppetLitmus::Serverspec.run_shell('puppet module list --render-as json').stdout)
+  modules = JSON.parse(PuppetLitmus::PuppetHelpers.run_shell('puppet module list --render-as json').stdout)
   test_module_info = modules['modules_by_path'].values.flatten.find { |mod_info| mod_info =~ module_regex }
   test_module_info.match(/\(([^)]*)\)/)[1]
 end