diff --git a/lib/html_pipeline/sanitization_filter.rb b/lib/html_pipeline/sanitization_filter.rb
index 24d7a726..002d8115 100644
--- a/lib/html_pipeline/sanitization_filter.rb
+++ b/lib/html_pipeline/sanitization_filter.rb
@@ -24,7 +24,7 @@ class SanitizationFilter
 
       attributes: {
         "a" => ["href"],
-        "img" => ["src", "longdesc"],
+        "img" => ["src", "longdesc", "loading", "alt"],
         "div" => ["itemscope", "itemtype"],
         "blockquote" => ["cite"],
         "del" => ["cite"],