diff --git a/Library/.rubocop.yml b/Library/.rubocop.yml
index 8099c7ad07..4f6ac82f0c 100644
--- a/Library/.rubocop.yml
+++ b/Library/.rubocop.yml
@@ -176,10 +176,6 @@ Style/PercentLiteralDelimiters:
     '%W': '[]'
     '%x': '()'
 
-# we prefer Perl-style regex back references
-Style/PerlBackrefs:
-  Enabled: false
-
 Style/RaiseArgs:
   EnforcedStyle: exploded