diff --git a/README.md b/README.md
index 147b0bf..4783df4 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,9 @@ Created originally as part of PW3270 application.
 
 See more details at https://softwarepublico.gov.br/social/pw3270/
 
+![CodeQL](https://github.com/PerryWerneck/lib3270/workflows/CodeQL/badge.svg)
+
+
 Installation repositories
 =========================
 
--
libgit2 0.21.2