diff --git a/lib/rdoc/rd/block_parser.rb b/lib/rdoc/rd/block_parser.rb
index cf30043593..462ba869a2 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 1.5.1
+# This file is automatically generated by Racc 1.5.2
 # from Racc grammar file "".
 #
 
diff --git a/lib/rdoc/rd/inline_parser.rb b/lib/rdoc/rd/inline_parser.rb
index 007327bf0e..8f4c2c31ef 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 1.5.1
+# This file is automatically generated by Racc 1.5.2
 # from Racc grammar file "".
 #