diff --git a/php/src/GildedRose.php b/php/src/GildedRose.php
index 3797aae1..e622cda0 100644
--- a/php/src/GildedRose.php
+++ b/php/src/GildedRose.php
@@ -26,7 +26,7 @@ final class GildedRose
     {
         foreach ($this->items as $item) {
 
-            if ($item->name === 'Sulfuras, Hand of Ragnaros' || $item->name === 'Backstage passes to a TAFKAL80ETC concert') {
+            if ($item->name === 'Sulfuras, Hand of Ragnaros' || $item->name === 'Backstage passes to a TAFKAL80ETC concert' || $item->name === 'Aged Brie') {
                 $gildedRoseItem = $this->gildedRoseItemFactory->createGildedRoseItem($item);
                 $gildedRoseItem->ageByOneDay();
                 continue;
diff --git a/php/src/GildedRoseItem/BrieItem.php b/php/src/GildedRoseItem/BrieItem.php
index 1797c65e..8ef86989 100644
--- a/php/src/GildedRoseItem/BrieItem.php
+++ b/php/src/GildedRoseItem/BrieItem.php
@@ -16,9 +16,15 @@ class BrieItem implements GildedRoseItem
     public function ageByOneDay(): void
     {
         $this->item->sellIn -= 1;
+        $this->item->quality = min(50, $this->getNewQuality($this->item->quality, $this->item->sellIn));
+    }
 
-        if ($this->item->quality < 50) {
-            $this->item->quality += 1;
+    private function getNewQuality(int $previousQuality, int $sellIn): int
+    {
+        if ($sellIn < 0) {
+            return $previousQuality + 2;
         }
+
+        return $previousQuality + 1;
     }
 }
diff --git a/php/tests/behat/feature_files/brie.feature b/php/tests/behat/feature_files/brie.feature
index 7314ee1f..d0c31e5c 100644
--- a/php/tests/behat/feature_files/brie.feature
+++ b/php/tests/behat/feature_files/brie.feature
@@ -14,3 +14,8 @@ Feature: Brie quality changes
     Given some brie with a sell-in of 20 and a quality of 50
     When I update the quality
     Then the item should have a quality of 50
+
+  Scenario: Aged brie gets better faster after sell-by date
+    Given some brie with a sell-in of 0 and a quality of 20
+    When I update the quality
+    Then the item should have a quality of 22