diff --git a/lib/rdoc/rd/block_parser.rb b/lib/rdoc/rd/block_parser.rb
index f735326862..be0b786bfc 100644
--- a/lib/rdoc/rd/block_parser.rb
+++ b/lib/rdoc/rd/block_parser.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 #
 # DO NOT MODIFY!!!!
-# This file is automatically generated by Racc 1.4.14
+# This file is automatically generated by Racc 1.4.16
 # from Racc grammar file "".
 #
 
diff --git a/lib/rdoc/rd/inline_parser.rb b/lib/rdoc/rd/inline_parser.rb
index f73b81ba9d..a64102cac7 100644
--- a/lib/rdoc/rd/inline_parser.rb
+++ b/lib/rdoc/rd/inline_parser.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 #
 # DO NOT MODIFY!!!!
-# This file is automatically generated by Racc 1.4.14
+# This file is automatically generated by Racc 1.4.16
 # from Racc grammar file "".
 #