diff --git a/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix b/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix
index 2b60e2ae6b84..6542405e1f4e 100644
--- a/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix
+++ b/pkgs/applications/networking/instant-messengers/signal-desktop/generic.nix
@@ -156,6 +156,7 @@ stdenv.mkDerivation rec {
     libXrender
     libXtst
     libappindicator-gtk3
+    libpulseaudio
     libnotify
     libuuid
     mesa # for libgbm
@@ -235,7 +236,7 @@ stdenv.mkDerivation rec {
 
     # Fix the desktop link
     substituteInPlace $out/share/applications/${pname}.desktop \
-      --replace "/opt/${dir}/${pname}" $out/bin/${pname} \
+      --replace-fail "/opt/${dir}/${pname}" $out/bin/${pname} \
       --replace-fail "StartupWMClass=Signal" "StartupWMClass=signal"
 
     # Note: The following path contains bundled libraries:
diff --git a/pkgs/applications/networking/instant-messengers/signal-desktop/signal-desktop-beta.nix b/pkgs/applications/networking/instant-messengers/signal-desktop/signal-desktop-beta.nix
index a0d752151b96..fa07e2d1e477 100644
--- a/pkgs/applications/networking/instant-messengers/signal-desktop/signal-desktop-beta.nix
+++ b/pkgs/applications/networking/instant-messengers/signal-desktop/signal-desktop-beta.nix
@@ -2,7 +2,7 @@
 callPackage ./generic.nix { } rec {
   pname = "signal-desktop-beta";
   dir = "Signal Beta";
-  version = "7.32.0-beta.1";
+  version = "7.33.0-beta.1";
   url = "https://updates.signal.org/desktop/apt/pool/s/signal-desktop-beta/signal-desktop-beta_${version}_amd64.deb";
-  hash = "sha256-WrHF7Y8OcEOr+W/Jhc+Hj5jCtOjKigZ02N9N/hE+XLA=";
+  hash = "sha256-17ZSdfGS28OqXb0UBbel+tR8UTh07pPQNIoKmuUtzZ0=";
 }
diff --git a/pkgs/applications/networking/instant-messengers/signal-desktop/signal-desktop.nix b/pkgs/applications/networking/instant-messengers/signal-desktop/signal-desktop.nix
index eba218c54994..f1fc184a8b12 100644
--- a/pkgs/applications/networking/instant-messengers/signal-desktop/signal-desktop.nix
+++ b/pkgs/applications/networking/instant-messengers/signal-desktop/signal-desktop.nix
@@ -2,7 +2,7 @@
 callPackage ./generic.nix { } rec {
   pname = "signal-desktop";
   dir = "Signal";
-  version = "7.31.0";
+  version = "7.32.0";
   url = "https://updates.signal.org/desktop/apt/pool/s/signal-desktop/signal-desktop_${version}_amd64.deb";
-  hash = "sha256-7UumNusnexW3ujA65SzxKAdRrWxmKrgZFzK0GMlURaM=";
+  hash = "sha256-3D1Pou+x8mJBzWAKRq8YDcFOJXKKnA8ksMJ3SR8C+SU=";
 }