diff --git a/CHANGELOG.md b/CHANGELOG.md
index eda84b3..55fad3a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+### 0.5.2: September 1st, 2018
+* **Tweak** - Remove `thumbnail` class from images inserted in editor
+
 ### 0.5.1: August 20th, 2018
 * **Fix** - Style WooCommerce notices
 * **Fix** - Retro-compatibility for WooCommerce versions < 3.4.0
diff --git a/inc/front/thumbnails.php b/inc/front/thumbnails.php
index 0884dd7..e25682f 100644
--- a/inc/front/thumbnails.php
+++ b/inc/front/thumbnails.php
@@ -41,7 +41,7 @@ function give_linked_images_class( $html, $id, $caption, $title, $align, $url, $
 			$html = preg_replace( '/(<a.*?)>/', '$1 class="' . $classes . '" >', $html );
 		}
 	} // separated by spaces, e.g. 'img image-link'
-	$html = str_replace( "wp-image", "thumbnail wp-image", $html );
+	$html = str_replace( "wp-image", "wp-image", $html );
 	$html = str_replace( '<a', '<a data-title="' . $caption . '" title="' . $caption . '"', $html );
 
 	return $html;
diff --git a/package.json b/package.json
index 7718f15..6aa0e06 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "stormbringer",
-  "version": "0.5.1",
+  "version": "0.5.2",
   "description": "WordPress theme",
   "license": "Apache-2.0",
   "repository" : {
diff --git a/stormbringer-child/package.json b/stormbringer-child/package.json
index 067ee66..10eda6f 100644
--- a/stormbringer-child/package.json
+++ b/stormbringer-child/package.json
@@ -1,6 +1,6 @@
 {
   "name": "stormbringer",
-  "version": "0.5.1",
+  "version": "0.5.2",
   "description": "WordPress theme",
   "license": "Apache-2.0",
   "repository" : {
diff --git a/style.css b/style.css
index ca72482..74e98c8 100644
--- a/style.css
+++ b/style.css
@@ -4,7 +4,7 @@ Theme URI: https://github.com/nicomollet/stormbringer
 Github Theme URI: https://github.com/nicomollet/stormbringer
 Github Branch: master
 Description: A simple responsive theme based on twitter's bootstrap framework. 
-Version: 0.5.1
+Version: 0.5.2
 Author: Nicolas Mollet
 Author URI: http://www.nicolasmollet.com
 Text Domain: stormbringer