diff --git a/.sync.yml b/.sync.yml
index c15a0ccbb..aa41efef7 100644
--- a/.sync.yml
+++ b/.sync.yml
@@ -9,8 +9,6 @@ spec/spec_helper.rb:
   spec_overrides:
     - "require 'support/acceptance/supported_versions'"
     - "require 'spec_helper_methods'"
-spec/spec_helper_acceptance.rb:
-  unmanaged: false
 .github/workflows/ci.yml:
   pidfile_workaround: CentOS,Ubuntu
 .puppet-lint.rc:
diff --git a/spec/spec_helper_acceptance.rb b/spec/spec_helper_acceptance.rb
index d3a6e23cf..d64c527b1 100644
--- a/spec/spec_helper_acceptance.rb
+++ b/spec/spec_helper_acceptance.rb
@@ -1,10 +1,14 @@
 # frozen_string_literal: true
 
-# Managed by modulesync - DO NOT EDIT
-# https://voxpupuli.org/docs/updating-files-managed-with-modulesync/
-
 require 'voxpupuli/acceptance/spec_helper_acceptance'
 
-configure_beaker
+configure_beaker do
+  # In Puppet 7 the locale ends up being C.UTF-8 if it isn't passed.
+  # This locale doesn't exist in EL7 and won't be supported either.
+  # At least PostgreSQL runs into this.
+  if host['hypervisor'] == 'docker' && host['platform'] == 'el-7-x86_64'
+    ENV['LANG'] = 'en_US.UTF-8'
+  end
+end
 
 Dir['./spec/support/acceptance/**/*.rb'].sort.each { |f| require f }