diff --git a/lib/voxpupuli/test/facts.rb b/lib/voxpupuli/test/facts.rb
index 057b396..ec4f338 100644
--- a/lib/voxpupuli/test/facts.rb
+++ b/lib/voxpupuli/test/facts.rb
@@ -53,7 +53,11 @@ def add_facts_for_metadata(metadata)
   metadata['dependencies'].each do |dependency|
     case normalize_module_name(dependency['name'])
     when 'camptocamp/systemd', 'puppet/systemd'
-      add_custom_fact :systemd, ->(_os, facts) { facts[:service_provider] == 'systemd' }
+      if RSpec.configuration.facterdb_string_keys
+        add_custom_fact 'systemd', ->(_os, facts) { facts['service_provider'] == 'systemd' }
+      else
+        add_custom_fact :systemd, ->(_os, facts) { facts[:service_provider] == 'systemd' }
+      end
     when 'puppetlabs/stdlib'
       add_stdlib_facts
     end
@@ -67,13 +71,21 @@ def normalize_module_name(name)
 end
 
 def add_stdlib_facts
-  add_custom_fact :puppet_environmentpath, '/etc/puppetlabs/code/environments'
-  add_custom_fact :puppet_vardir, '/opt/puppetlabs/puppet/cache'
-  add_custom_fact :root_home, '/root'
+  if RSpec.configuration.facterdb_string_keys
+    add_custom_fact 'puppet_environmentpath', '/etc/puppetlabs/code/environments'
+    add_custom_fact 'puppet_vardir', '/opt/puppetlabs/puppet/cache'
+    add_custom_fact 'root_home', '/root'
+  else
+    add_custom_fact :puppet_environmentpath, '/etc/puppetlabs/code/environments'
+    add_custom_fact :puppet_vardir, '/opt/puppetlabs/puppet/cache'
+    add_custom_fact :root_home, '/root'
+  end
 
   # Rough conversion of grepping in the puppet source:
   # grep defaultfor lib/puppet/provider/service/*.rb
+  service_provider = RSpec.configuration.facterdb_string_keys ? 'service_provider' : :service_provider
   add_custom_fact :service_provider, lambda { |_os, facts|
+
     os = RSpec.configuration.facterdb_string_keys ? facts['os'] : facts[:os]
     case os['family'].downcase
     when 'archlinux', 'debian', 'redhat'
diff --git a/voxpupuli-test.gemspec b/voxpupuli-test.gemspec
index eed4b25..0019dcf 100644
--- a/voxpupuli-test.gemspec
+++ b/voxpupuli-test.gemspec
@@ -25,7 +25,7 @@ Gem::Specification.new do |s|
   # 3.0.0 and later require Ruby 2.7
   s.add_runtime_dependency 'puppet-strings', '~> 4.0'
   s.add_runtime_dependency 'rspec-puppet', '~> 4.0'
-  s.add_runtime_dependency 'rspec-puppet-facts', '~> 4.0'
+  s.add_runtime_dependency 'rspec-puppet-facts', '~> 5.0'
   s.add_runtime_dependency 'rspec-puppet-utils', '~> 3.4'
 
   # Rubocop