diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3ba70c4..dcf99be 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php: ['8.1','8.2', '8.3']
+        php: ['8.0', '8.1','8.2', '8.3', '8.4']
         stability: [prefer-stable]
 
     steps:
diff --git a/src/Cart.php b/src/Cart.php
index c3147b0..435211c 100644
--- a/src/Cart.php
+++ b/src/Cart.php
@@ -345,17 +345,13 @@ public function getConditions(bool $active = false): CartConditionCollection
 
         if ($active) {
             return $conditions->filter(function (CartCondition $condition) {
-                $target = $condition->getTarget();
+                $amount = $condition->getTarget() == 'subtotal' ? $this->getSubTotal(false) : $this->getTotal();
 
-                $amount = $target == 'subtotal' ? $this->getSubTotal(false) : $this->getTotal();
-
-                return $condition->getMinimum() <= $amount;
+                return $condition->getMinimum() === null || $condition->getMinimum() <= $amount;
             })->filter(function (CartCondition $condition) {
-                $target = $condition->getTarget();
+                $amount = $condition->getTarget() == 'subtotal' ? $this->getSubTotal(false) : $this->getTotal();
 
-                $amount = $target == 'subtotal' ? $this->getSubTotal(false) : $this->getTotal();
-
-                return $condition->getMaximum() >= $amount;
+                return $condition->getMaximum() === null || $condition->getMaximum() >= $amount;
             });
         }