diff --git a/.rubocop.yml b/.rubocop.yml
index 5854c404b..b0de35f5e 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -48,9 +48,6 @@ Performance/FixedSize:
 Performance/FlatMap:
   Enabled: true
 
-Performance/LstripRstrip:
-  Enabled: true
-
 Performance/RangeInclude:
   Enabled: true
 
@@ -63,18 +60,12 @@ Performance/RedundantMatch:
 Performance/RedundantMerge:
   Enabled: true
 
-Performance/RedundantSortBy:
-  Enabled: true
-
 Performance/RegexpMatch:
   Enabled: true
 
 Performance/ReverseEach:
   Enabled: true
 
-Performance/Sample:
-  Enabled: true
-
 Performance/Size:
   Enabled: true