diff --git a/pkgs/by-name/si/signal-desktop/libsignal-node.nix b/pkgs/by-name/si/signal-desktop/libsignal-node.nix
index b3b13c42c954..cb5190abb930 100644
--- a/pkgs/by-name/si/signal-desktop/libsignal-node.nix
+++ b/pkgs/by-name/si/signal-desktop/libsignal-node.nix
@@ -24,23 +24,23 @@ let
 in
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "libsignal-node";
-  version = "0.78.3";
+  version = "0.81.0";
 
   src = fetchFromGitHub {
     owner = "signalapp";
     repo = "libsignal";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-BRNgNE7BR4mlCKS4sydxx7rrfy+s4bTpQkX9GbEfhTg=";
+    hash = "sha256-SOQyps+iGVQ3RWPLmQHzXwmMwmR1PrGIbViCmNg60P4=";
   };
 
-  cargoHash = "sha256-T8kSQFTvwAYZad9rQRK6vY8vEiilEKv1+fd/1EBlxjI=";
+  cargoHash = "sha256-O4v9GgNrs4+HpfgoHh6YLy4dNF1LrF1ZS50RaEHh1iM=";
 
   npmRoot = "node";
   npmDeps = fetchNpmDeps {
     name = "${finalAttrs.pname}-npm-deps";
     inherit (finalAttrs) version src;
     sourceRoot = "${finalAttrs.src.name}/${finalAttrs.npmRoot}";
-    hash = "sha256-e/WyQlea46qTx7x45QuYdlaShezHV5vuB3ptB2DRCVE=";
+    hash = "sha256-KvMEQ9nJunqF2CDjiP3s3CMoeF+nbUpZDzSIMsImbPg=";
   };
 
   nativeBuildInputs = [
@@ -62,15 +62,8 @@ rustPlatform.buildRustPackage (finalAttrs: {
     ./dont-strip-absolute-paths.patch
   ];
   postPatch = ''
-    substituteInPlace node/binding.gyp \
-      --replace-fail "'--out-dir', '<(PRODUCT_DIR)/'," \
-                     "'--out-dir', '$out/lib/<(NODE_OS_NAME)-<(target_arch)/'," \
-      --replace-fail "'target_name': 'libsignal_client_<(NODE_OS_NAME)_<(target_arch).node'," \
-                     "'target_name': '@signalapp+libsignal-client',"
-
     substituteInPlace node/build_node_bridge.py \
-      --replace-fail "dst_base = 'libsignal_client_%s_%s' % (node_os_name, node_arch)" \
-                     "dst_base = '@signalapp+libsignal-client'" \
+      --replace-fail "'prebuilds'" "'$out/lib'" \
       --replace-fail "objcopy = shutil.which('%s-linux-gnu-objcopy' % cargo_target.split('-')[0]) or 'objcopy'" \
                      "objcopy = os.getenv('OBJCOPY', 'objcopy')"
   '';
@@ -79,7 +72,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
     runHook preBuild
 
     pushd node
-    npx node-gyp rebuild
+    npm run build -- --copy-to-prebuilds
     popd
 
     runHook postBuild
diff --git a/pkgs/by-name/si/signal-desktop/package.nix b/pkgs/by-name/si/signal-desktop/package.nix
index 01bf8349b79d..e369ffaf2c6b 100644
--- a/pkgs/by-name/si/signal-desktop/package.nix
+++ b/pkgs/by-name/si/signal-desktop/package.nix
@@ -3,7 +3,7 @@
   lib,
   nodejs_22,
   pnpm_10,
-  electron_37,
+  electron_38,
   python3,
   makeWrapper,
   callPackage,
@@ -23,7 +23,7 @@
 let
   nodejs = nodejs_22;
   pnpm = pnpm_10.override { inherit nodejs; };
-  electron = electron_37;
+  electron = electron_38;
 
   libsignal-node = callPackage ./libsignal-node.nix { inherit nodejs; };
   signal-sqlcipher = callPackage ./signal-sqlcipher.nix { inherit pnpm nodejs; };
@@ -52,13 +52,13 @@ let
     '';
   });
 
-  version = "7.70.0";
+  version = "7.72.1";
 
   src = fetchFromGitHub {
     owner = "signalapp";
     repo = "Signal-Desktop";
     tag = "v${version}";
-    hash = "sha256-y9i9YQPsLt3SLqROyEZsyIkVy/os3hy+1UMUSFMZJTY=";
+    hash = "sha256-X+ENbHnlr9VL+flaZAHsOjRSBnXHa32qLNEXntxnRLA=";
   };
 
   sticker-creator = stdenv.mkDerivation (finalAttrs: {
@@ -134,15 +134,15 @@ stdenv.mkDerivation (finalAttrs: {
     fetcherVersion = 1;
     hash =
       if withAppleEmojis then
-        "sha256-uVVUHvYhBCplKPyuS2+PKCxox8uWU2E/2EXLCG1ot54="
+        "sha256-7VDIUyQBhFNrAmpfemKcNgjJEuvQ355uU6oZdWM1Hk8="
       else
-        "sha256-tbfk/tIgqpjDtDiULbTVUOJf5i9eLX9xY7vUPrrjmu0=";
+        "sha256-gpK4WZjD//jZkxLvhAzXVAKmLjya8D1MVCPD4KKJJdA=";
   };
 
   env = {
     ELECTRON_SKIP_BINARY_DOWNLOAD = "1";
     SIGNAL_ENV = "production";
-    SOURCE_DATE_EPOCH = 1757542492;
+    SOURCE_DATE_EPOCH = 1758811882;
   };
 
   preBuild = ''
@@ -218,10 +218,12 @@ stdenv.mkDerivation (finalAttrs: {
       install -Dm644 $icon $out/share/icons/hicolor/`basename ''${icon%.png}`/apps/signal-desktop.png
     done
 
+    # TODO: Remove --ozone-platform=wayland after next electron update,
+    # see https://github.com/electron/electron/pull/48309
     makeWrapper '${lib.getExe electron}' "$out/bin/signal-desktop" \
       --add-flags "$out/share/signal-desktop/app.asar" \
       --set-default ELECTRON_FORCE_IS_PACKAGED 1 \
-      --add-flags "\''${NIXOS_OZONE_WL:+\''${WAYLAND_DISPLAY:+--ozone-platform-hint=auto --enable-features=WaylandWindowDecorations --enable-wayland-ime=true}}" \
+      --add-flags "\''${NIXOS_OZONE_WL:+\''${WAYLAND_DISPLAY:+--ozone-platform=wayland --enable-features=WaylandWindowDecorations --enable-wayland-ime=true}}" \
       --add-flags ${lib.escapeShellArg commandLineArgs}
 
     runHook postInstall
diff --git a/pkgs/by-name/si/signal-desktop/ringrtc.nix b/pkgs/by-name/si/signal-desktop/ringrtc.nix
index 0f5f892ecc77..7a2ddc5c7c09 100644
--- a/pkgs/by-name/si/signal-desktop/ringrtc.nix
+++ b/pkgs/by-name/si/signal-desktop/ringrtc.nix
@@ -19,16 +19,16 @@ let
 in
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "ringrtc";
-  version = "2.57.0";
+  version = "2.57.1";
 
   src = fetchFromGitHub {
     owner = "signalapp";
     repo = "ringrtc";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-m73SXjTES1sHGbQRtn9CjurFd/Xby5Yyn6uLVLigfiU=";
+    hash = "sha256-U3sfNjJInT7QBqLLNK1j/0xzmwi/pfZZGOtL/JZ5gZM=";
   };
 
-  cargoHash = "sha256-LRCgK/w+GcYBCWUKjytErQCxDtS15EnsVOr5Uq6F8ww=";
+  cargoHash = "sha256-DcaZmOPVO/eAMZ9NsqmwnI2d7Vdz/aVmvI4COivvDBM=";
 
   cargoBuildFlags = [
     "-p"