diff --git a/st2common/st2common/runners/base.py b/st2common/st2common/runners/base.py
index c0390f5563..50170daad3 100644
--- a/st2common/st2common/runners/base.py
+++ b/st2common/st2common/runners/base.py
@@ -382,8 +382,8 @@ def create_git_worktree(self, content_version):
         else:
             LOG.debug('Git worktree created in "%s"' % (worktree_path), extra=extra)
 
-        # Make sure system / action runner user can access that directory
-        args = ["chmod", "777", worktree_path]
+        # Make sure only system / action runner user can access that directory
+        args = ["chmod", "750", worktree_path]
         cmd = list2cmdline(args)
         run_command(cmd=cmd, shell=True)