diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix b/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix
index 32ace9924d15..944c648de61c 100644
--- a/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix
@@ -89,6 +89,7 @@
   tree-sitter-supercollider = lib.importJSON ./tree-sitter-supercollider.json;
   tree-sitter-surface = lib.importJSON ./tree-sitter-surface.json;
   tree-sitter-svelte = lib.importJSON ./tree-sitter-svelte.json;
+  tree-sitter-templ = lib.importJSON ./tree-sitter-templ.json;
   tree-sitter-tiger = lib.importJSON ./tree-sitter-tiger.json;
   tree-sitter-tlaplus = lib.importJSON ./tree-sitter-tlaplus.json;
   tree-sitter-toml = lib.importJSON ./tree-sitter-toml.json;
@@ -100,9 +101,9 @@
   tree-sitter-verilog = lib.importJSON ./tree-sitter-verilog.json;
   tree-sitter-vim = lib.importJSON ./tree-sitter-vim.json;
   tree-sitter-vue = lib.importJSON ./tree-sitter-vue.json;
+  tree-sitter-wgsl = lib.importJSON ./tree-sitter-wgsl.json;
   tree-sitter-wing = lib.importJSON ./tree-sitter-wing.json;
   tree-sitter-yaml = lib.importJSON ./tree-sitter-yaml.json;
   tree-sitter-yang = lib.importJSON ./tree-sitter-yang.json;
   tree-sitter-zig = lib.importJSON ./tree-sitter-zig.json;
-  tree-sitter-wgsl = lib.importJSON ./tree-sitter-wgsl.json;
 }
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-templ.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-templ.json
new file mode 100644
index 000000000000..240368e1e55d
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-templ.json
@@ -0,0 +1,12 @@
+{
+  "url": "https://github.com/vrischmann/tree-sitter-templ",
+  "rev": "14d105789af342f7f0c32bff2fec1a6edec59f60",
+  "date": "2023-12-29T22:31:39+01:00",
+  "path": "/nix/store/8yixhjmhynryb79g3wff5kxgz35ncg3n-tree-sitter-templ",
+  "sha256": "1hr0l9ibm12ggiyk5m3h12fjgrdkfv7d2qlcfy6l6c10k4ghngf2",
+  "hash": "sha256-wj0LH5kgMEONd4xi0c52s+UnnQhw1DJ9fE+EumKiIMM=",
+  "fetchLFS": false,
+  "fetchSubmodules": false,
+  "deepClone": false,
+  "leaveDotGit": false
+}
diff --git a/pkgs/development/tools/parsing/tree-sitter/update.nix b/pkgs/development/tools/parsing/tree-sitter/update.nix
index b5068b30cf24..0f37bb0f10ad 100644
--- a/pkgs/development/tools/parsing/tree-sitter/update.nix
+++ b/pkgs/development/tools/parsing/tree-sitter/update.nix
@@ -397,6 +397,10 @@ let
       orga = "szebniok";
       repo = "tree-sitter-wgsl";
     };
+    "tree-sitter-templ" = {
+      orga = "vrischmann";
+      repo = "tree-sitter-templ";
+    };
   };
 
   allGrammars =