diff --git a/CHANGELOG.md b/CHANGELOG.md
index c9ddf64..82e49bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,11 @@
 
 Common and useful classes, methods, exceptions etc.
 
+# 1.1.5
+
+1. [BaseCollection] Prepare elements while adding them by `addMultiple()` method in the same way as passing them in 
+   constructor.
+
 # 1.1.4
 
 1. [BaseCollection] Fix incorrectly working limit() method
diff --git a/VERSION b/VERSION
index 65087b4..e25d8d9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.1.4
+1.1.5
diff --git a/src/Collection/BaseCollection.php b/src/Collection/BaseCollection.php
index 0b1f3dd..f2539dc 100644
--- a/src/Collection/BaseCollection.php
+++ b/src/Collection/BaseCollection.php
@@ -84,7 +84,9 @@ abstract class BaseCollection implements CollectionInterface
             return;
         }
 
-        foreach ($elements as $index => $element) {
+        $prepared = $this->prepareElements($elements);
+
+        foreach ($prepared as $index => $element) {
             if ($useIndexes) {
                 $this->add($element, $index);