diff --git a/pkgs/by-name/ne/nextcloud-talk-desktop/package.nix b/pkgs/by-name/ne/nextcloud-talk-desktop/package.nix
index 4cbd26a18035..410f2ed33554 100644
--- a/pkgs/by-name/ne/nextcloud-talk-desktop/package.nix
+++ b/pkgs/by-name/ne/nextcloud-talk-desktop/package.nix
@@ -21,13 +21,17 @@
   libglvnd,
   systemd,
   patchelf,
-  nix-update-script,
   undmg,
   makeWrapper,
 }:
 let
   pname = "nextcloud-talk-desktop";
-  version = "2.0.4";
+  version = "2.0.4"; # Ensure both hashes (Linux and Darwin) are updated!
+
+  hashes = {
+    linux = "sha256-Nky3ws1UV0F4qjbBog53BjXkZ/ttTER/32NlB2ONJaE=";
+    darwin = "sha256-N/v1842rheqrjG4pAwrSDYNWhQDgWinTiZPusD1dvaM=";
+  };
 
   # Only x86_64-linux is supported with Darwin support being universal
   sources = {
@@ -35,15 +39,20 @@ let
     # See https://github.com/nextcloud/talk-desktop?tab=readme-ov-file#%EF%B8%8F-prerequisites
     linux = fetchzip {
       url = "https://github.com/nextcloud-releases/talk-desktop/releases/download/v${version}/Nextcloud.Talk-linux-x64.zip";
-      hash = "sha256-Nky3ws1UV0F4qjbBog53BjXkZ/ttTER/32NlB2ONJaE=";
+      hash = hashes.linux;
       stripRoot = false;
     };
     darwin = fetchurl {
       url = "https://github.com/nextcloud-releases/talk-desktop/releases/download/v${version}/Nextcloud.Talk-macos-universal.dmg";
-      hash = "sha256-FgiUb2MNEqmbK4BphHQ7M2IeN7Vg1NQ9FR9UO4AfvNs=";
+      hash = hashes.darwin;
     };
   };
 
+  passthru = {
+    inherit hashes; # needed by updateScript
+    updateScript = ./update.py;
+  };
+
   meta = {
     description = "Nextcloud Talk Desktop Client";
     homepage = "https://github.com/nextcloud/talk-desktop";
@@ -55,7 +64,7 @@ let
   };
 
   linux = stdenv.mkDerivation (finalAttrs: {
-    inherit pname version;
+    inherit pname version passthru;
 
     src = sources.linux;
 
@@ -127,19 +136,17 @@ let
     '';
 
     postFixup = ''
-      patchelf --add-needed libGL.so.1 --add-needed libEGL.so.1 \
+      ${lib.getExe patchelf} --add-needed libGL.so.1 --add-needed libEGL.so.1 \
         "$out/opt/Nextcloud Talk-linux-x64/Nextcloud Talk"
     '';
 
-    passthru.updateScript = nix-update-script { };
-
     meta = meta // {
       platforms = lib.intersectLists lib.platforms.linux lib.platforms.x86_64;
     };
   });
 
   darwin = stdenv.mkDerivation (finalAttrs: {
-    inherit pname version;
+    inherit pname version passthru;
 
     src = sources.darwin;
 
diff --git a/pkgs/by-name/ne/nextcloud-talk-desktop/update.py b/pkgs/by-name/ne/nextcloud-talk-desktop/update.py
new file mode 100755
index 000000000000..21027bfc551d
--- /dev/null
+++ b/pkgs/by-name/ne/nextcloud-talk-desktop/update.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i python3 -p python3 bash nix-update jq
+
+import subprocess
+from os.path import join, dirname
+
+# This will set the version correctly,
+# and will also set the hash for x86_64-linux.
+subprocess.run(["nix-update", "nextcloud-talk-desktop"])
+
+# Now get the hash for Darwin.
+# (It's the same for both Darwin platforms, and we don't support aarch64-linux).
+newVer = subprocess.run(
+  ["nix-instantiate", "--eval", "--raw", "-A", "nextcloud-talk-desktop.version"], capture_output=True, encoding="locale"
+).stdout
+
+darwinUrl = (
+  f"https://github.com/nextcloud-releases/talk-desktop/releases/download/v{newVer}/Nextcloud.Talk-macos-universal.dmg"
+)
+
+oldDarwinHash = subprocess.run(
+  ["nix-instantiate", "--eval", "--raw", "-A", f"nextcloud-talk-desktop.passthru.hashes.darwin"],
+  capture_output=True,
+  encoding="locale",
+).stdout
+
+newDarwinHash = subprocess.run(
+  ["bash", "-c", f"nix store prefetch-file {darwinUrl} --json | jq -r '.hash'"],
+  capture_output=True,
+  encoding="locale",
+).stdout.strip()  # Has a newline
+
+with open(join(dirname(__file__), "package.nix"), "r") as f:
+  txt = f.read()
+
+txt = txt.replace(oldDarwinHash, newDarwinHash)
+
+with open(join(dirname(__file__), "package.nix"), "w") as f:
+  f.write(txt)