diff --git a/.rubocop.yml b/.rubocop.yml
index b80958061..d1e5ce5f6 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -812,7 +812,7 @@ Rails/UniqBeforePluck:
   Enabled: true
 
 Rails/UniqueValidationWithoutIndex:
-  Enabled: false
+  Enabled: true
 
 Rails/UnknownEnv:
   Enabled: false