diff --git a/doc/release-notes/rl-2511.section.md b/doc/release-notes/rl-2511.section.md
index 13a690ad5eb7..bc3a9ec10910 100644
--- a/doc/release-notes/rl-2511.section.md
+++ b/doc/release-notes/rl-2511.section.md
@@ -24,6 +24,8 @@
 
 - `gnome-keyring` no longer ships with an SSH agent anymore because it has been deprecated upstream. You should use `gcr_4` instead, which provides the same features. More information on why this was done can be found on [the relevant GCR upstream PR](https://gitlab.gnome.org/GNOME/gcr/-/merge_requests/67).
 
+- `tooling-language-server` has been renamed to `deputy` (both the package and binary), following the rename of the upstream project.
+
 - `lima` package now only includes the guest agent for the host's architecture by default. If your guest VM's architecture differs from your Lima host's, you'll need to enable the `lima-additional-guestagents` package by setting `withAdditionalGuestAgents = true` when overriding lima with this input.
 
 - `telegram-desktop` packages now uses `Telegram` for its binary. The previous name was `telegram-desktop`. This is due to [an upstream decision](https://github.com/telegramdesktop/tdesktop/commit/56ff5808a3d766f892bc3c3305afb106b629ef6f) to make the name consistent with other platforms.
diff --git a/pkgs/by-name/to/tooling-language-server/package.nix b/pkgs/by-name/de/deputy/package.nix
similarity index 56%
rename from pkgs/by-name/to/tooling-language-server/package.nix
rename to pkgs/by-name/de/deputy/package.nix
index dc7d529230f3..1cb6c3bd092c 100644
--- a/pkgs/by-name/to/tooling-language-server/package.nix
+++ b/pkgs/by-name/de/deputy/package.nix
@@ -7,18 +7,18 @@
 }:
 
 rustPlatform.buildRustPackage rec {
-  pname = "tooling-language-server";
-  version = "0.5.0";
+  pname = "deputy";
+  version = "0.6.0";
 
   src = fetchFromGitHub {
     owner = "filiptibell";
-    repo = "tooling-language-server";
+    repo = "deputy";
     tag = "v${version}";
-    hash = "sha256-0FF9p3Z8C3C/fcTvu66ozCs/G3UAJ/Kf2v+4IZU4eCA=";
+    hash = "sha256-dTCikfHqfSVb1F6LYrLqFAEufD6dPgAi6F65yPlCO18=";
   };
 
   useFetchCargoVendor = true;
-  cargoHash = "sha256-DxQMAnlE8oWtigU1gUEdTdBIvEtbL8xhaPLx6kt8T2c=";
+  cargoHash = "sha256-nGheg/HnkYsvfrsd/dPNbFQEHXFtjB5so436nrbKRqo=";
 
   nativeInstallCheckInputs = [ versionCheckHook ];
   versionCheckProgramArg = "--version";
@@ -28,10 +28,10 @@ rustPlatform.buildRustPackage rec {
 
   meta = {
     description = "Language server for tools and package managers";
-    homepage = "https://github.com/filiptibell/tooling-language-server";
-    changelog = "https://github.com/filiptibell/tooling-language-server/blob/${src.tag}/CHANGELOG.md";
+    homepage = "https://github.com/filiptibell/deputy";
+    changelog = "https://github.com/filiptibell/deputy/blob/${src.tag}/CHANGELOG.md";
     license = lib.licenses.mpl20;
     maintainers = with lib.maintainers; [ niklaskorz ];
-    mainProgram = "tooling-language-server";
+    mainProgram = "deputy";
   };
 }
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index d10327ff4865..33caa9292687 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1968,6 +1968,7 @@ mapAliases {
   tokyo-night-gtk = tokyonight-gtk-theme; # Added 2024-01-28
   tomcat_connectors = apacheHttpdPackages.mod_jk; # Added 2024-06-07
   ton = throw "'ton' has been removed as there were insufficient maintainer resources to keep up with updates"; # Added 2025-04-27
+  tooling-language-server = deputy; # Added 2025-06-22
   tor-browser-bundle-bin = tor-browser; # Added 2023-09-23
   torrenttools = throw "torrenttools has been removed due to lack of maintanance upstream"; # Added 2025-04-06
   torq = throw "torq has been removed because the project went closed source"; # Added 2024-11-24