diff --git a/docs/manual/release-notes/rl-0.9.md b/docs/manual/release-notes/rl-0.9.md
index 03588586..8c06cfcf 100644
--- a/docs/manual/release-notes/rl-0.9.md
+++ b/docs/manual/release-notes/rl-0.9.md
@@ -1,5 +1,11 @@
 # Release 0.9 {#sec-release-0-9}
 
+## Breaking changes
+
+- Nixpkgs merged a full and incompatible rewrite of vimPlugins.nvim-treesitter.
+  The changes affected how grammars are built and it caused issues when neovim
+  attempted to load languages and could not find files in expected locations.
+
 ## Changelog {#sec-release-0-9-changelog}
 
 [suimong](https://github.com/suimong):
@@ -7,6 +13,11 @@
 - Fix `vim.tabline.nvimBufferline` where `setupOpts.options.hover` requires
   `vim.opt.mousemoveevent` to be set.
 
+[thamenato](https://github.com/thamenato):
+
+- Attempt to adapt nvim-treesitter to (breaking) Nixpkgs changes. Some treesitte grammars
+  were changed to prefer `grammarPlugins` over `builtGrammars`.
+
 [jfeo](https://github.com/jfeo):
 
 [ccc.nvim]: https://github.com/uga-rosa/ccc.nvim
diff --git a/flake.lock b/flake.lock
index 9f6d599a..0b4c58d5 100644
--- a/flake.lock
+++ b/flake.lock
@@ -73,11 +73,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1764081664,
-        "narHash": "sha256-sUoHmPr/EwXzRMpv1u/kH+dXuvJEyyF2Q7muE+t0EU4=",
+        "lastModified": 1767364772,
+        "narHash": "sha256-fFUnEYMla8b7UKjijLnMe+oVFOz6HjijGGNS1l7dYaQ=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "dc205f7b4fdb04c8b7877b43edb7b73be7730081",
+        "rev": "16c7794d0a28b5a37904d55bcca36003b9109aaa",
         "type": "github"
       },
       "original": {
diff --git a/lib/types/languages.nix b/lib/types/languages.nix
index b1865c41..45515f55 100644
--- a/lib/types/languages.nix
+++ b/lib/types/languages.nix
@@ -30,7 +30,7 @@
 
   mkGrammarOption = pkgs: grammar:
     mkPackageOption pkgs ["${grammar} treesitter"] {
-      default = ["vimPlugins" "nvim-treesitter" "builtGrammars" grammar];
+      default = ["vimPlugins" "nvim-treesitter" "grammarPlugins" grammar];
     };
 in {
   inherit diagnostics diagnosticSubmodule mkGrammarOption;
diff --git a/modules/plugins/languages/csharp.nix b/modules/plugins/languages/csharp.nix
index 20e5bd72..ef973301 100644
--- a/modules/plugins/languages/csharp.nix
+++ b/modules/plugins/languages/csharp.nix
@@ -178,7 +178,7 @@ in {
 
       treesitter = {
         enable = mkEnableOption "C# treesitter" // {default = config.vim.languages.enableTreesitter;};
-        package = mkGrammarOption pkgs "c-sharp";
+        package = mkGrammarOption pkgs "c_sharp";
       };
 
       lsp = {
diff --git a/modules/plugins/languages/markdown.nix b/modules/plugins/languages/markdown.nix
index 59615cec..feb3f2a5 100644
--- a/modules/plugins/languages/markdown.nix
+++ b/modules/plugins/languages/markdown.nix
@@ -63,7 +63,7 @@ in {
         description = "Enable Markdown treesitter";
       };
       mdPackage = mkGrammarOption pkgs "markdown";
-      mdInlinePackage = mkGrammarOption pkgs "markdown-inline";
+      mdInlinePackage = mkGrammarOption pkgs "markdown_inline";
     };
 
     lsp = {
diff --git a/modules/plugins/languages/python.nix b/modules/plugins/languages/python.nix
index b1cbe224..9cfb82f6 100644
--- a/modules/plugins/languages/python.nix
+++ b/modules/plugins/languages/python.nix
@@ -228,7 +228,7 @@ in {
       package = mkOption {
         description = "Python treesitter grammar to use";
         type = package;
-        default = pkgs.vimPlugins.nvim-treesitter.builtGrammars.python;
+        default = pkgs.vimPlugins.nvim-treesitter.grammarPlugins.python;
       };
     };
 
diff --git a/modules/plugins/languages/sql.nix b/modules/plugins/languages/sql.nix
index e3e686ec..e5787e43 100644
--- a/modules/plugins/languages/sql.nix
+++ b/modules/plugins/languages/sql.nix
@@ -66,7 +66,7 @@ in {
 
       package = mkOption {
         type = package;
-        default = pkgs.vimPlugins.nvim-treesitter.builtGrammars.sql;
+        default = pkgs.vimPlugins.nvim-treesitter.grammarPlugins.sql;
         description = "SQL treesitter grammar to use";
       };
     };
diff --git a/modules/plugins/notes/orgmode/config.nix b/modules/plugins/notes/orgmode/config.nix
index 3f1b7eaf..19b47aa1 100644
--- a/modules/plugins/notes/orgmode/config.nix
+++ b/modules/plugins/notes/orgmode/config.nix
@@ -21,7 +21,7 @@ in {
 
         pluginRC.orgmode = entryAnywhere ''
           -- Treesitter configuration
-          require('nvim-treesitter.configs').setup {
+          require('nvim-treesitter.config').setup {
 
             -- If TS highlights are not enabled at all, or disabled via `disable` prop,
             -- highlighting will fallback to default Vim syntax highlighting
diff --git a/modules/plugins/treesitter/config.nix b/modules/plugins/treesitter/config.nix
index f7955110..d10e1e89 100644
--- a/modules/plugins/treesitter/config.nix
+++ b/modules/plugins/treesitter/config.nix
@@ -52,7 +52,7 @@ in {
       '');
 
       pluginRC.treesitter = entryAfter ["basic"] ''
-        require('nvim-treesitter.configs').setup {
+        require('nvim-treesitter.config').setup {
           -- Disable imperative treesitter options that would attempt to fetch
           -- grammars into the read-only Nix store. To add additional grammars here
           -- you must use the `config.vim.treesitter.grammars` option.
diff --git a/modules/plugins/treesitter/treesitter.nix b/modules/plugins/treesitter/treesitter.nix
index d761d6b3..cf1c5375 100644
--- a/modules/plugins/treesitter/treesitter.nix
+++ b/modules/plugins/treesitter/treesitter.nix
@@ -25,14 +25,14 @@ in {
       type = listOf package;
       default = [];
       example = literalExpression ''
-        with pkgs.vimPlugins.nvim-treesitter.builtGrammars; [
+        with pkgs.vimPlugins.nvim-treesitter.grammarPlugins; [
           regex
           kdl
         ];
       '';
       description = ''
         List of treesitter grammars to install. For grammars to be installed properly,
-        you must use grammars from `pkgs.vimPlugins.nvim-treesitter.builtGrammars`.
+        you must use grammars from `pkgs.vimPlugins.nvim-treesitter.grammarPlugins`.
         You can use `pkgs.vimPlugins.nvim-treesitter.allGrammars` to install all grammars.
 
         For languages already supported by nvf, you may use
@@ -56,7 +56,7 @@ in {
       internal = true;
       readOnly = true;
       type = listOf package;
-      default = with pkgs.vimPlugins.nvim-treesitter.builtGrammars; [c lua vim vimdoc query];
+      default = with pkgs.vimPlugins.nvim-treesitter.grammarPlugins; [c lua vim vimdoc query];
       description = ''
         A list of treesitter grammars that will be installed by default
         if treesitter has been enabled and  {option}`vim.treeesitter.addDefaultGrammars`
diff --git a/modules/plugins/treesitter/ts-textobjects/config.nix b/modules/plugins/treesitter/ts-textobjects/config.nix
index 7a9239d1..511ebdce 100644
--- a/modules/plugins/treesitter/ts-textobjects/config.nix
+++ b/modules/plugins/treesitter/ts-textobjects/config.nix
@@ -16,7 +16,7 @@ in {
 
       # set up treesitter-textobjects after Treesitter, whose config we're adding to.
       pluginRC.treesitter-textobjects = entryAfter ["treesitter"] ''
-        require("nvim-treesitter.configs").setup({textobjects = ${toLuaObject cfg.setupOpts}})
+        require("nvim-treesitter.config").setup({textobjects = ${toLuaObject cfg.setupOpts}})
       '';
     };
   };
diff --git a/modules/plugins/ui/noice/config.nix b/modules/plugins/ui/noice/config.nix
index fe82f588..1f81f4a9 100644
--- a/modules/plugins/ui/noice/config.nix
+++ b/modules/plugins/ui/noice/config.nix
@@ -12,7 +12,7 @@
   cfg = config.vim.ui.noice;
   tscfg = config.vim.treesitter;
 
-  defaultGrammars = with pkgs.vimPlugins.nvim-treesitter.builtGrammars; [vim regex lua bash markdown];
+  defaultGrammars = with pkgs.vimPlugins.nvim-treesitter.grammarPlugins; [vim regex lua bash markdown];
 in {
   config = mkIf cfg.enable {
     vim = {