diff --git a/pkgs/development/tools/parsing/tree-sitter/grammars/grammar-sources.nix b/pkgs/development/tools/parsing/tree-sitter/grammars/grammar-sources.nix
index 84dd4b549da8..dac95b1392e2 100644
--- a/pkgs/development/tools/parsing/tree-sitter/grammars/grammar-sources.nix
+++ b/pkgs/development/tools/parsing/tree-sitter/grammars/grammar-sources.nix
@@ -771,10 +771,10 @@
   };
 
   ghostty = {
-    version = "1.2-unstable-2025-11-27";
+    version = "1.2-unstable-2026-01-02";
     url = "github:bezhermoso/tree-sitter-ghostty";
-    rev = "c2f7af6d7250f63f01401a6d84b3e353e71ff3c3";
-    hash = "sha256-d9cJWhEHiAMxyNhUt7VR5IU5z/5oXn3m9aMsknexaNM=";
+    rev = "c14d6cb4dd36ff9dd569978491aa52e4726cbe86";
+    hash = "sha256-sVPr8jR6z0G68z3ZTdlMOXWguNGbZ/5apffNefm9apU=";
     meta = {
       license = lib.licenses.mit;
       maintainers = with lib.maintainers; [