diff --git a/pkgs/applications/networking/instant-messengers/teamspeak/server.nix b/pkgs/applications/networking/instant-messengers/teamspeak/server.nix
index 8af582c3f37f..761d7cfcbd4b 100644
--- a/pkgs/applications/networking/instant-messengers/teamspeak/server.nix
+++ b/pkgs/applications/networking/instant-messengers/teamspeak/server.nix
@@ -1,16 +1,16 @@
-{ stdenv, fetchurl, autoPatchelfHook }:
+{ stdenv, fetchurl, autoPatchelfHook, writeScript }:
 
 let
   arch = if stdenv.is64bit then "amd64" else "x86";
 in stdenv.mkDerivation rec {
   pname = "teamspeak-server";
-  version = "3.11.0";
+  version = "3.12.1";
 
   src = fetchurl {
     url = "https://files.teamspeak-services.com/releases/server/${version}/teamspeak3-server_linux_${arch}-${version}.tar.bz2";
     sha256 = if stdenv.is64bit
-      then "18hsr119dq46rvhz5sb9snn2gfxwiig37g6bfzk24x6wlga3xihq"
-      else "1lyazw328azi0asvgvcsxglc1saqih6ss0g8pc8f5pzqngk9p953";
+      then "1dxbnk12ry6arn1p38hpv5jfak55pmfmxkkl7aihn3sp1aizpgyg"
+      else "0nfzx7pbzd95a7v08g29l84sc0lnv9fx8vz3mrmzhs0xqn9gxdkq";
   };
 
   buildInputs = [ stdenv.cc.cc ];
@@ -28,6 +28,29 @@ in stdenv.mkDerivation rec {
     ln -s $out/lib/teamspeak/tsdns/tsdnsserver $out/bin/tsdnsserver
   '';
 
+  passthru.updateScript = writeScript "update-teampeak-server" ''
+    #!/usr/bin/env nix-shell
+    #!nix-shell -i bash -p common-updater-scripts curl gnugrep gnused
+
+    set -eu -o pipefail
+
+    version=$( \
+        curl -s "https://www.teamspeak.de/download/teamspeak-3-amd64-server-linux/" \
+        | grep softwareVersion \
+        | sed -E -e 's/^.*<span itemprop="softwareVersion">([^<]+)<\/span>.*$/\1/' \
+    )
+
+    versionOld=$(nix-instantiate --eval --strict -A "teamspeak_server.version")
+
+    nixFile=pkgs/applications/networking/instant-messengers/teamspeak/server.nix
+
+    update-source-version teamspeak_server "$version" --system=i686-linux
+
+    sed -i -e "s/version = \"$version\";/version = $versionOld;/" "$nixFile"
+
+    update-source-version teamspeak_server "$version" --system=x86_64-linux
+  '';
+
   meta = with stdenv.lib; {
     description = "TeamSpeak voice communication server";
     homepage = "https://teamspeak.com/";