diff --git a/_data/signed/mhyst.yaml b/_data/signed/mhyst.yaml
new file mode 100644
index 000000000..8cb974b74
--- /dev/null
+++ b/_data/signed/mhyst.yaml
@@ -0,0 +1,2 @@
+name: Julio Serrano
+link: https://github.com/mhyst