diff --git a/lib/govspeak/template_renderer.rb b/lib/govspeak/template_renderer.rb
index <HASH>..<HASH> 100644
--- a/lib/govspeak/template_renderer.rb
+++ b/lib/govspeak/template_renderer.rb
@@ -17,7 +17,7 @@ module Govspeak
     def t(*args)
       options = args.last.is_a?(Hash) ? args.last.dup : {}
       key = args.shift
-      I18n.t!(key, options.merge(locale: locale))
+      I18n.t!(key, **options.merge(locale: locale))
     end
 
     def format_with_html_line_breaks(string)
Use splat to pass keyword arguments into method

This fixes the following deprecation notice which appeared in the move from Ruby <I> to <I>:

```
lib/govspeak/template_renderer.rb:<I>: warning: Using the last argument as keyword parameters is deprecated; maybe ** should be added to the call
```