diff --git a/src/AbstractZodiac.php b/src/AbstractZodiac.php
index 2317e0a..cbdd191 100644
--- a/src/AbstractZodiac.php
+++ b/src/AbstractZodiac.php
@@ -36,7 +36,7 @@ public function start(): Carbon
             day: $this->startDay
         );
 
-        if ($date === false) {
+        if ($date == false) {
             throw new RuntimeException('Unable to create end date of zodiac sign.');
         }
 
@@ -60,7 +60,7 @@ public function end(): Carbon
             second: 59
         );
 
-        if ($date === false) {
+        if ($date == false) {
             throw new RuntimeException('Unable to create end date of zodiac sign.');
         }