diff --git a/pkgs/development/tools/parsing/tree-sitter/default.nix b/pkgs/development/tools/parsing/tree-sitter/default.nix
index 7f48a6ad97d..63082f60ac2 100644
--- a/pkgs/development/tools/parsing/tree-sitter/default.nix
+++ b/pkgs/development/tools/parsing/tree-sitter/default.nix
@@ -11,9 +11,9 @@ let
   # 1) change all these hashes
   # 2) nix-build -A tree-sitter.updater.update-all-grammars
   # 3) run the ./result script that is output by that (it updates ./grammars)
-  version = "0.16.9";
-  sha256 = "sha256-e5Ft+jEpExLgBBFmiswW0VFrsKume4gmUiOiF4ODhhQ=";
-  cargoSha256 = "sha256-XbPLQEvf4JX517ddpx18eweiPrztS5E/X2pejkqmlCU=";
+  version = "0.17.1";
+  sha256 = "sha256-k61actAEyao/Ea8aw9PCm252U+1I0d43MAYC68/lui4=";
+  cargoSha256 = "sha256-Jp/Fl20ZZfaIdWinOOujNVH5JjJNtyUYHfyTrmeeoRg=";
 
   src = fetchFromGitHub {
     owner = "tree-sitter";
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix b/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix
index 5898997dd6e..083dc61a96f 100644
--- a/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix
@@ -8,6 +8,7 @@
   javascript = (builtins.fromJSON (builtins.readFile ./tree-sitter-javascript.json));
   jsdoc = (builtins.fromJSON (builtins.readFile ./tree-sitter-jsdoc.json));
   json = (builtins.fromJSON (builtins.readFile ./tree-sitter-json.json));
+  lua = (builtins.fromJSON (builtins.readFile ./tree-sitter-lua.json));
   php = (builtins.fromJSON (builtins.readFile ./tree-sitter-php.json));
   python = (builtins.fromJSON (builtins.readFile ./tree-sitter-python.json));
   ruby = (builtins.fromJSON (builtins.readFile ./tree-sitter-ruby.json));
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-lua.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-lua.json
new file mode 100644
index 00000000000..267d25a52a0
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-lua.json
@@ -0,0 +1,10 @@
+{
+  "url": "https://github.com/nvim-treesitter/tree-sitter-lua",
+  "rev": "278b0ea1f1f3d86afc86faaca0cbbf6c01182a54",
+  "date": "2020-09-08T18:29:23+02:00",
+  "path": "/nix/store/xkaqsw030bf6zd6pivrzrg3d50j1ka1k-tree-sitter-lua",
+  "sha256": "0i8jdp0bbl02h58hfhpild4v3rvy8yk5r5l90navvfxw4ad4f6f3",
+  "fetchSubmodules": false,
+  "deepClone": false,
+  "leaveDotGit": false
+}