diff --git a/_data/signed/guijan.yaml b/_data/signed/guijan.yaml
new file mode 100644
index 00000000..0e7d5034
--- /dev/null
+++ b/_data/signed/guijan.yaml
@@ -0,0 +1,2 @@
+name: Guilherme Janczak
+link: https://github.com/guijan