diff --git a/_data/signed/GlebKosteiko.yaml b/_data/signed/GlebKosteiko.yaml
new file mode 100644
index 00000000..efdabc40
--- /dev/null
+++ b/_data/signed/GlebKosteiko.yaml
@@ -0,0 +1,2 @@
+name: Gleb Kosteiko
+link: https://gleb-kosteiko.github.io