diff --git a/src/BuilderTrait.php b/src/BuilderTrait.php
index acfc37a..423d649 100644
--- a/src/BuilderTrait.php
+++ b/src/BuilderTrait.php
@@ -116,17 +116,21 @@ public function update(array $values)
         // update version table records
         $db = $this->model->getConnection();
         foreach ($affectedRecords as $record) {
-            // get versioned values from record
+            // get current version values
+            $currentVersionValues = $db->table($this->model->getVersionTable())
+                ->where([
+                    [$this->model->getVersionKeyName(), $record->{$this->model->getKeyName()}],
+                    [$this->model->getVersionColumn(), $record->{$this->model->getLatestVersionColumn()}]
+                ])->first();
+
+            // merge current version with updated values to create new version
             foreach($this->model->getVersionedAttributeNames() as $key) {
-                $recordVersionValues[$key] = (isset($versionValues[$key])) ? $versionValues[$key] : $record->{$key};
+                $recordVersionValues[$key] = (isset($versionValues[$key])) ? $versionValues[$key] : $currentVersionValues->{$key};
             }
 
-            // merge versioned values from record and input
-            $recordVersionValues = array_merge($recordVersionValues, $versionValues);
-
             // set version and ref_id
             $recordVersionValues[$this->model->getVersionKeyName()] = $record->{$this->model->getKeyName()};
-            $recordVersionValues[$this->model->getVersionColumn()] = $record->{$this->model->getVersionColumn()}+1;
+            $recordVersionValues[$this->model->getVersionColumn()] = $record->{$this->model->getLatestVersionColumn()}+1;
 
             // insert new version
             if(! $db->table($this->model->getVersionTable())->insert($recordVersionValues)) {