diff --git a/.html-w3c-validatorrc.json b/.html-w3c-validatorrc.json
index 8cc95f3..78f9ff5 100644
--- a/.html-w3c-validatorrc.json
+++ b/.html-w3c-validatorrc.json
@@ -1,4 +1,5 @@
 {
   "urls": ["http://127.0.0.1:3000/", "http://127.0.0.1:3000/blog"],
-  "files": ["./public/curriculum-vitae/index.html"]
+  "files": ["./public/curriculum-vitae/index.html"],
+  "severities": ["error"]
 }