diff --git a/.rubocop.yml b/.rubocop.yml
index 57d22e083..896e50f7a 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,4 +1,5 @@
 AllCops:
+  TargetRubyVersion: 2.3
   Exclude:
     - "bin/**/*"
     - "db/schema.rb"
@@ -167,9 +168,3 @@ Style/NumericPredicate:
 # Reset some HoundCI changes back to Rubocop defaults
 Layout/DotPosition:
   EnforcedStyle: leading
-
-### backward compatibility
-
-# only with ruby >= 2.4
-Performance/RegexpMatch:
-  Enabled: false