diff --git a/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml b/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml
index 908d2cf7fbe0..aad4a1e15ef0 100644
--- a/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml
+++ b/nixos/doc/manual/from_md/release-notes/rl-2111.section.xml
@@ -1176,6 +1176,14 @@ Superuser created successfully.
           will no longer work and must be updated.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          The <literal>fluidsynth_1</literal> attribute has been
+          removed, as this legacy version is no longer needed in
+          nixpkgs. The actively maintained 2.x series is available as
+          <literal>fluidsynth</literal> unchanged.
+        </para>
+      </listitem>
     </itemizedlist>
   </section>
   <section xml:id="sec-release-21.11-notable-changes">
diff --git a/nixos/doc/manual/release-notes/rl-2111.section.md b/nixos/doc/manual/release-notes/rl-2111.section.md
index 645bcf6d4770..9b9766db3043 100644
--- a/nixos/doc/manual/release-notes/rl-2111.section.md
+++ b/nixos/doc/manual/release-notes/rl-2111.section.md
@@ -362,6 +362,8 @@ In addition to numerous new and upgraded packages, this release has the followin
 - The `services.mosquitto` module has been rewritten to support multiple listeners and per-listener configuration.
   Module configurations from previous releases will no longer work and must be updated.
 
+- The `fluidsynth_1` attribute has been removed, as this legacy version is no longer needed in nixpkgs. The actively maintained 2.x series is available as `fluidsynth` unchanged.
+
 ## Other Notable Changes {#sec-release-21.11-notable-changes}
 
 
diff --git a/pkgs/applications/audio/fluidsynth/default.nix b/pkgs/applications/audio/fluidsynth/default.nix
index fa53bee5dc8d..0af7b6b1f959 100644
--- a/pkgs/applications/audio/fluidsynth/default.nix
+++ b/pkgs/applications/audio/fluidsynth/default.nix
@@ -1,33 +1,17 @@
 { stdenv, lib, fetchFromGitHub, pkg-config, cmake
 , alsa-lib, glib, libjack2, libsndfile, libpulseaudio
 , AudioUnit, CoreAudio, CoreMIDI, CoreServices
-, version ? "2"
 }:
 
-let
-  versionMap = {
-    "1" = {
-      fluidsynthVersion = "1.1.11";
-      sha256 = "0n75jq3xgq46hfmjkaaxz3gic77shs4fzajq40c8gk043i84xbdh";
-    };
-    "2" = {
-      fluidsynthVersion = "2.2.3";
-      sha256 = "0x5808d03ym23np17nl8gfbkx3c4y3d7jyyr2222wn2prswbb6x3";
-    };
-  };
-in
-
-with versionMap.${version};
-
-stdenv.mkDerivation  {
-  name = "fluidsynth-${fluidsynthVersion}";
-  version = fluidsynthVersion;
+stdenv.mkDerivation rec {
+  pname = "fluidsynth";
+  version = "2.2.3";
 
   src = fetchFromGitHub {
     owner = "FluidSynth";
     repo = "fluidsynth";
-    rev = "v${fluidsynthVersion}";
-    inherit sha256;
+    rev = "v${version}";
+    sha256 = "0x5808d03ym23np17nl8gfbkx3c4y3d7jyyr2222wn2prswbb6x3";
   };
 
   nativeBuildInputs = [ pkg-config cmake ];
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a662fa4afe8f..170d484c3b66 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -24662,7 +24662,6 @@ with pkgs;
   fluidsynth = callPackage ../applications/audio/fluidsynth {
     inherit (darwin.apple_sdk.frameworks) AudioUnit CoreAudio CoreMIDI CoreServices;
   };
-  fluidsynth_1 = fluidsynth.override { version = "1"; };
 
   fmit = libsForQt5.callPackage ../applications/audio/fmit { };