diff --git a/src/Model.php b/src/Model.php
index 4edae69..c50f95f 100644
--- a/src/Model.php
+++ b/src/Model.php
@@ -5,6 +5,7 @@ namespace Kletellier\PdoWrapper;
 class Model
 {
     protected mixed $values;
+    protected array $updated;
     protected string $table;
     protected string $pk;
     private Db $db;
@@ -15,6 +16,7 @@ class Model
         $this->db = Db::getInstance();
         $this->new = true;
         $this->values = array();
+        $this->updated = array();
         $this->pk = "id";
         $this->table = $this->getDefaultTableName();
     }
@@ -45,6 +47,7 @@ class Model
     {
         $this->values = $data;
         $this->new = false;
+        $this->updated = [];
         return $this;
     }
 
@@ -61,8 +64,18 @@ class Model
                 $ret = true;
             }
         } else {
-            $query = $qb->getPreparedQuery($this->values, false);
-            $ret = $this->db->updateQuery($query);
+            if (count($this->updated) > 0) {
+                $data = [];
+                $data[$this->pk] = $this->values[$this->pk];
+                foreach ($this->updated as $updatecol) {
+                    $data[$updatecol] = $this->values[$updatecol];
+                }
+                $query = $qb->getPreparedQuery($data, false);
+                $ret = $this->db->updateQuery($query);
+                if ($ret) {
+                    $this->updated = [];
+                }
+            }
         }
         return $ret;
     }
@@ -75,6 +88,9 @@ class Model
     public function __set($name, $value): void
     {
         $this->values[$name] = $value;
+        if (!$this->new && !in_array($name, $this->updated)) {
+            $this->updated[] = $name;
+        }
     }
 
     public function __get($name): mixed