diff --git a/_data/signed/zhang5788.yaml b/_data/signed/zhang5788.yaml
index 5daafd88..e8f0ea59 100644
--- a/_data/signed/zhang5788.yaml
+++ b/_data/signed/zhang5788.yaml
@@ -1,2 +1,2 @@
 name: zhang5788
-link: www.github.com/zhang5788
+link: https://www.github.com/zhang5788