diff --git a/dotfiles/neovim/init.lua b/dotfiles/neovim/init.lua
index d7bdd8e..7097cb2 100644
--- a/dotfiles/neovim/init.lua
+++ b/dotfiles/neovim/init.lua
@@ -138,3 +138,10 @@ cmp.setup({
 vim.api.nvim_set_keymap('n', '<c-P>',
 	"<cmd>lua require('fzf-lua').files()<CR>",
 	{ noremap = true, silent = true })
+
+
+-----------------------------------------------------------
+-- satysfi language server
+require('lspconfig')['satysfi-ls'].setup{
+  autostart = true
+}
diff --git a/dotfiles/neovim/lua/lspconfig/server_configuration/satysfi-ls.lua b/dotfiles/neovim/lua/lspconfig/server_configuration/satysfi-ls.lua
new file mode 100644
index 0000000..78e30f7
--- /dev/null
+++ b/dotfiles/neovim/lua/lspconfig/server_configuration/satysfi-ls.lua
@@ -0,0 +1,20 @@
+# https://zenn.dev/monaqa/articles/2021-12-10-satysfi-language-server
+local util = require 'lspconfig.util'
+
+return {
+  default_config = {
+    cmd = { 'satysfi-language-server' },
+    filetypes = { 'satysfi' },
+    root_dir = util.root_pattern('.git'),
+    single_file_support = true,
+  },
+  docs = {
+    description = [[
+      https://github.com/monaqa/satysfi-language-server
+      Language server for SATySFi.
+      ]],
+    default_config = {
+      root_dir = [[root_pattern(".git")]],
+    },
+  },
+}