diff --git a/CHANGELOG.md b/CHANGELOG.md
index f5355ff..a64dfea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - Fixed an issue that could cause the calendar to programmatically scroll to a month or day to which it had previously scrolled
 - Fixed Storyboard support by removing the `fatalError` in `init?(coder: NSCoder)`
+- Fixed an issue that could cause the calendar to layout unnecessarily due to a trait collection change notification
 
 ### Changed
 - Removed all deprecated code, simplifying the public API in preparation for a 2.0 release
diff --git a/Sources/Public/CalendarView.swift b/Sources/Public/CalendarView.swift
index da6664a..938f011 100644
--- a/Sources/Public/CalendarView.swift
+++ b/Sources/Public/CalendarView.swift
@@ -165,6 +165,13 @@ public final class CalendarView: UIView {
 
   public override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
     super.traitCollectionDidChange(previousTraitCollection)
+
+    // This can be called with a different trait collection instance, even if nothing in the trait
+    // collection has changed (noticed from SwiftUI). We guard against this to prevent and
+    // unnecessary layout pass.
+    guard traitCollection.layoutDirection != previousTraitCollection?.layoutDirection else {
+      return
+    }
     setNeedsLayout()
   }