diff --git a/test.rb b/test.rb
index 6b208dd..89aa568 100755
--- a/test.rb
+++ b/test.rb
@@ -98,7 +98,7 @@ cmd :ADD_NOTE, { kind: :self, id: '/blog/bar' }
 cmd :ADD_NOTE, { kind: :link, id: :causa_arcana_com }
 
 cmd(:RENDER_FOOTNOTES, :html).tap do |result|
-  expected = <<~HTML.freeze
+  expected = <<~HTML
     <h2>Self references</h2>
 
     <ol>
@@ -125,7 +125,7 @@ cmd(:RENDER_FOOTNOTES, :html).tap do |result|
   raise unless result == expected
 end
 cmd(:RENDER_FOOTNOTES, :json).tap do |result|
-  expected = <<~JSON.freeze
+  expected = <<~JSON
     {
       "self": [
         {