diff --git a/mkdocs.yml b/mkdocs.yml
index 5b32049..cf6817b 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -5,7 +5,7 @@ edit_uri: tree/main/docs/
 
 theme: 
   name: material
-  language: pt-br
+  language: pt-BR
   features:
     - search.suggest
     - content.code.annotate