diff --git a/doc/update/8.12-to-8.13.md b/doc/update/8.12-to-8.13.md
index 8940d14559b880f98069250c8361aa1f337c0e05..c0084d9d59c21add44506acc5c56fa000dd0e592 100644
--- a/doc/update/8.12-to-8.13.md
+++ b/doc/update/8.12-to-8.13.md
@@ -72,7 +72,7 @@ sudo -u git -H git checkout 8-13-stable-ee
 ```bash
 cd /home/git/gitlab-shell
 sudo -u git -H git fetch --all --tags
-sudo -u git -H git checkout v3.6.3
+sudo -u git -H git checkout v3.6.6
 ```
 
 ### 6. Update gitlab-workhorse