diff --git a/packages/strapi-admin/controllers/Webhooks.js b/packages/strapi-admin/controllers/Webhooks.js
index 785baa039e..a307e3c4f0 100644
--- a/packages/strapi-admin/controllers/Webhooks.js
+++ b/packages/strapi-admin/controllers/Webhooks.js
@@ -8,6 +8,7 @@ const ALLOWED_EVENTS = [
   'entry.update',
   'entry.delete',
   'media.create',
+  'media.update',
   'media.delete',
 ];
 
@@ -165,11 +166,7 @@ module.exports = {
 
     const webhook = await strapi.webhookStore.findWebhook(id);
 
-    const response = await strapi.webhookRunner.run(
-      webhook,
-      'trigger-test',
-      {}
-    );
+    const response = await strapi.webhookRunner.run(webhook, 'trigger-test', {});
 
     ctx.body = { data: response };
   },
diff --git a/packages/strapi-plugin-upload/services/image-manipulation.js b/packages/strapi-plugin-upload/services/image-manipulation.js
index 1a6bdbb5d5..9a32ec8779 100644
--- a/packages/strapi-plugin-upload/services/image-manipulation.js
+++ b/packages/strapi-plugin-upload/services/image-manipulation.js
@@ -13,7 +13,7 @@ const getMetadatas = buffer =>
 
 const getDimensions = buffer =>
   getMetadatas(buffer)
-    .then(({ width, height }) => ({ width, height }))
+    .then(({ width = null, height = null }) => ({ width, height }))
     .catch(() => ({})); // ignore errors
 
 const THUMBNAIL_RESIZE_OPTIONS = {