diff --git a/kallithea/config/routing.py b/kallithea/config/routing.py
--- a/kallithea/config/routing.py
+++ b/kallithea/config/routing.py
@@ -562,7 +562,7 @@ def make_map(config):
 
     rmap.connect("edit_repo_advanced_locking", "/{repo_name:.*?}/settings/advanced/locking",
                  controller='admin/repos', action="edit_advanced_locking",
-                 conditions=dict(method=["PUT"], function=check_repo))
+                 conditions=dict(method=["POST"], function=check_repo))
     rmap.connect('toggle_locking', "/{repo_name:.*?}/settings/advanced/locking_toggle",
                  controller='admin/repos', action="toggle_locking",
                  conditions=dict(method=["GET"], function=check_repo))
diff --git a/kallithea/templates/admin/repos/repo_edit_advanced.html b/kallithea/templates/admin/repos/repo_edit_advanced.html
--- a/kallithea/templates/admin/repos/repo_edit_advanced.html
+++ b/kallithea/templates/admin/repos/repo_edit_advanced.html
@@ -44,7 +44,7 @@ ${h.form(url('edit_repo_advanced_journal
 ${h.end_form()}
 
 <h3>${_('Change Locking')}</h3>
-${h.form(url('edit_repo_advanced_locking', repo_name=c.repo_info.repo_name), method='put')}
+${h.form(url('edit_repo_advanced_locking', repo_name=c.repo_info.repo_name))}
 <div class="form">
       %if c.repo_info.locked[0]:
         ${h.hidden('set_unlock', '1')}