diff --git a/pkgs/applications/editors/vim/plugins/nvim-treesitter/generated.nix b/pkgs/applications/editors/vim/plugins/nvim-treesitter/generated.nix
index c6c995700075..59b5ac48ce9b 100644
--- a/pkgs/applications/editors/vim/plugins/nvim-treesitter/generated.nix
+++ b/pkgs/applications/editors/vim/plugins/nvim-treesitter/generated.nix
@@ -1,6 +1,6 @@
 # generated by pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
 
-{ buildGrammar, fetchFromBitbucket, fetchFromGitHub, fetchFromGitLab, fetchFromGitea, fetchFromGitiles, fetchFromRepoOrCz, fetchFromSourcehut, fetchgit }:
+{ buildGrammar, fetchFromBitbucket, fetchFromGitHub, fetchFromGitLab, fetchFromGitea, fetchFromGitiles, fetchFromRepoOrCz, fetchFromSourcehut, fetchgit, fetchhg, fetchsvn }:
 
 {
   ada = buildGrammar {
diff --git a/pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py b/pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
index 6b297cd59157..6963a82d46b6 100755
--- a/pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
+++ b/pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
@@ -60,10 +60,9 @@ def generate_grammar(item):
 
 generated_file = """# generated by pkgs/applications/editors/vim/plugins/nvim-treesitter/update.py
 
-{ buildGrammar"""
+{ buildGrammar, """
 
-for fetcher in subprocess.check_output(["nurl", "-L"], text=True).splitlines():
-    generated_file += f", {fetcher}"
+generated_file += subprocess.check_output(["nurl", "-Ls", ", "], text=True)
 
 generated_file += """ }:
 
diff --git a/pkgs/tools/misc/nurl/default.nix b/pkgs/tools/misc/nurl/default.nix
index 6f0cf9bdfefa..b716e279404e 100644
--- a/pkgs/tools/misc/nurl/default.nix
+++ b/pkgs/tools/misc/nurl/default.nix
@@ -10,22 +10,25 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "nurl";
-  version = "0.3.1";
+  version = "0.3.3";
 
   src = fetchFromGitHub {
     owner = "nix-community";
     repo = "nurl";
     rev = "v${version}";
-    hash = "sha256-fLa9gNdwBOSOMisU1UI8KAKGOkDN13LZsBpH+bObqUM=";
+    hash = "sha256-bZJlhGbRjhrLk8J0WJq3NCY71MZYsxy8f1ippguOsIM=";
   };
 
-  cargoSha256 = "sha256-vyhsZYYSpR2qbwTXOw8e1DFRQ78RVHktK6zCbiXT7RI=";
+  cargoSha256 = "sha256-904IOaovvSOuMyXIxZjaG2iqUoz5qq3hftLGaiA8h0U=";
 
   nativeBuildInputs = [
     installShellFiles
     makeWrapper
   ];
 
+  # tests require internet access
+  doCheck = false;
+
   postInstall = ''
     wrapProgram $out/bin/nurl \
       --prefix PATH : ${lib.makeBinPath [ gitMinimal mercurial nix ]}