diff --git a/home/programs/nvim/plugins/nvimtree.lua b/home/programs/nvim/plugins/nvimtree.lua
index 372301c..93ced36 100644
--- a/home/programs/nvim/plugins/nvimtree.lua
+++ b/home/programs/nvim/plugins/nvimtree.lua
@@ -14,8 +14,9 @@ local function my_on_attach(bufnr)
   api.config.mappings.default_on_attach(bufnr)
 
   -- custom mappings
-  vim.keymap.set('n', '<C-t>', api.tree.change_root_to_parent,        opts('Up'))
-  vim.keymap.set('n', '?',     api.tree.toggle_help,                  opts('Help'))
+  vim.keymap.set('n', '<C-o>', api.tree.open(),        opts('Up'))
+  vim.keymap.set('n', '<C-o>', api.tree.close(),        opts('Down'))
+  -- vim.keymap.set('n', '?',     api.tree.toggle_help,                  opts('Help'))
 end
 
 require('nvim-tree').setup()