diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix b/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix
index 6474e71c942c..cb083bd06c75 100644
--- a/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/default.nix
@@ -58,6 +58,7 @@
   tree-sitter-ocaml = lib.importJSON ./tree-sitter-ocaml.json;
   tree-sitter-org-nvim = lib.importJSON ./tree-sitter-org-nvim.json;
   tree-sitter-perl = lib.importJSON ./tree-sitter-perl.json;
+  tree-sitter-pgn = lib.importJSON ./tree-sitter-pgn.json;
   tree-sitter-php = lib.importJSON ./tree-sitter-php.json;
   tree-sitter-pioasm = lib.importJSON ./tree-sitter-pioasm.json;
   tree-sitter-prisma = lib.importJSON ./tree-sitter-prisma.json;
diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-pgn.json b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-pgn.json
new file mode 100644
index 000000000000..786fec353d5f
--- /dev/null
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/tree-sitter-pgn.json
@@ -0,0 +1,11 @@
+{
+  "url": "https://github.com/rolandwalker/tree-sitter-pgn",
+  "rev": "e26ee30850f0cb81541480cf1e2c70385bdb013a",
+  "date": "2021-08-25T17:57:38-04:00",
+  "path": "/nix/store/fj882ab2hl3qrz45zvq366na6d2gqv8v-tree-sitter-pgn",
+  "sha256": "1c4602jmq3p7p7splzip76863l1z3rgbjlbksqv0diqjxp7c42gq",
+  "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 5c10dbaf9c7d..54aa2c850a52 100644
--- a/pkgs/development/tools/parsing/tree-sitter/update.nix
+++ b/pkgs/development/tools/parsing/tree-sitter/update.nix
@@ -184,6 +184,10 @@ let
       orga = "bkegley";
       repo = "tree-sitter-graphql";
     };
+    "tree-sitter-pgn" = {
+      orga = "rolandwalker";
+      repo = "tree-sitter-pgn";
+    };
     "tree-sitter-perl" = {
       orga = "ganezdragon";
       repo = "tree-sitter-perl";