diff --git a/src/Libs/Model.php b/src/Libs/Model.php
index 2cf4c88..e3f43a8 100644
--- a/src/Libs/Model.php
+++ b/src/Libs/Model.php
@@ -480,12 +480,8 @@ class Model
 
         $set = [];
         foreach ($atts as $key => $value) {
-            if ($value !== null) {
-                $set[] = "$key=:$key";
-                static::$dbQueryVariables[':' . $key] = $value;
-            } else {
-                $set[] = "$key=NULL";
-            }
+            $set[] = "$key=:$key";
+            static::$dbQueryVariables[':' . $key] = $value;
         }
 
         $table = static::table();
@@ -511,11 +507,9 @@ class Model
         static::$dbQueryVariables = [];
 
         foreach ($atts as $key => $value) {
-            if (isset($value)) {
-                $into[] = "$key";
-                $values[] = ":$key";
-                static::$dbQueryVariables[":$key"] = $value;
-            }
+            $into[] = "$key";
+            $values[] = ":$key";
+            static::$dbQueryVariables[":$key"] = $value;
         }
 
         $table = static::table();