diff --git a/.swiftlint.yml b/.swiftlint.yml
index ef8311c1..0ef3482a 100644
--- a/.swiftlint.yml
+++ b/.swiftlint.yml
@@ -50,6 +50,9 @@ only_rules:
   # over `CGPoint(x: 0, y: 0)`).
   - prefer_zero_over_explicit_init
 
+  # Prefer `reduce(into:_:)` over `reduce(_:_:)` for non-trivial accumulator types.
+  - reduce_into
+
   # Use shorthand syntax for optional binding (`if let foo` instead of
   # `if let foo = foo`).
   - shorthand_optional_binding