diff --git a/init.plugins.vim b/init.plugins.vim
index ba0c85e..ab8c046 100644
--- a/init.plugins.vim
+++ b/init.plugins.vim
@@ -10,6 +10,10 @@ call plug#begin('~/.config/nvim/bundle')
 " https://github.com/simrat39/rust-tools.nvim
 Plug 'simrat39/rust-tools.nvim'
 
+" https://github.com/kevinhwang91/
+Plug 'kevinhwang91/promise-async'
+Plug 'kevinhwang91/nvim-ufo'
+
 " colorscheme (temporary)
 Plug 'https://github.com/marko-cerovac/material.nvim', { 'branch': 'main' }
 let g:material_style = 'lighter'
diff --git a/lua/init-lsp.lua b/lua/init-lsp.lua
index e9ba36a..97d12cd 100644
--- a/lua/init-lsp.lua
+++ b/lua/init-lsp.lua
@@ -113,6 +113,11 @@ end
 local capabilities = vim.lsp.protocol.make_client_capabilities()
 capabilities = require('cmp_nvim_lsp').update_capabilities(capabilities)
 capabilities.textDocument.completion.completionItem.snippetSupport = true
+-- nvim-ufo
+capabilities.textDocument.foldingRange = {
+    dynamicRegistration = false,
+    lineFoldingOnly = true
+}
 
 for _, lsp in ipairs(servers) do
     nvim_lsp[lsp].setup {
@@ -122,6 +127,12 @@ for _, lsp in ipairs(servers) do
     }
 end
 
+-- nvim-ufo
+require('ufo').setup()
+vim.keymap.set('n', 'gH', function()
+    local winid = require('ufo').peekFoldedLinesUnderCursor()
+end)
+
 local runtime_path = vim.split(package.path, ';')
 table.insert(runtime_path, "lua/?.lua")
 table.insert(runtime_path, "lua/?/init.lua")