diff --git a/init.lua b/init.lua
index d778857..84c14e9 100644
--- a/init.lua
+++ b/init.lua
@@ -1,3 +1,14 @@
+-- Version check: require Neovim 0.11+
+if vim.fn.has("nvim-0.11") == 0 then
+  vim.api.nvim_echo({
+    { "ERROR: ", "ErrorMsg" },
+    { "This config requires Neovim 0.11 or higher.\n", "Normal" },
+    { "WARNING: ", "WarningMsg" },
+    { "Please update Neovim to use this configuration.", "Normal" },
+  }, true, {})
+  return
+end
+
 -- Set leader keys before lazy loads
 vim.g.mapleader = " "
 vim.g.maplocalleader = " "
diff --git a/lazy-lock.json b/lazy-lock.json
new file mode 100644
index 0000000..cceedb0
--- /dev/null
+++ b/lazy-lock.json
@@ -0,0 +1,12 @@
+{
+  "conjure": { "branch": "main", "commit": "403639610bcb9b6a5dfc494dc3179cc19773a471" },
+  "lazy.nvim": { "branch": "main", "commit": "306a05526ada86a7b30af95c5cc81ffba93fef97" },
+  "mason.nvim": { "branch": "main", "commit": "44d1e90e1f66e077268191e3ee9d2ac97cc18e65" },
+  "nfnl": { "branch": "main", "commit": "fecf731e02bc51d88372c4f992fe1ef0c19c02ae" },
+  "nvim-paredit": { "branch": "master", "commit": "b6ba636874a3115d944e35746444724240568aca" },
+  "nvim-treesitter": { "branch": "master", "commit": "42fc28ba918343ebfd5565147a42a26580579482" },
+  "plenary.nvim": { "branch": "master", "commit": "b9fd5226c2f76c951fc8ed5923d85e4de065e509" },
+  "telescope.nvim": { "branch": "master", "commit": "a0bbec21143c7bc5f8bb02e0005fa0b982edc026" },
+  "tokyonight.nvim": { "branch": "main", "commit": "5da1b76e64daf4c5d410f06bcb6b9cb640da7dfd" },
+  "which-key.nvim": { "branch": "main", "commit": "3aab2147e74890957785941f0c1ad87d0a44c15a" }
+}
diff --git a/lua/bootstrap.lua b/lua/bootstrap.lua
index f0c89d4..8a5e575 100644
--- a/lua/bootstrap.lua
+++ b/lua/bootstrap.lua
@@ -16,17 +16,16 @@ return {
   },
   {
     "nvim-treesitter/nvim-treesitter",
+    branch = "main",
     build = ":TSUpdate",
     config = function()
       local langs = { "clojure", "fennel", "lua", "vim", "vimdoc", "query" }
 
       -- Install parsers asynchronously on first load
       vim.schedule(function()
-        local installed = require("nvim-treesitter").get_installed()
-        for _, lang in ipairs(langs) do
-          if not vim.list_contains(installed, lang) then
-            require("nvim-treesitter").install(lang)
-          end
+        local ok, ts = pcall(require, "nvim-treesitter")
+        if ok and ts.install then
+          ts.install(langs)
         end
       end)