diff --git a/pkgs/by-name/si/signal-desktop-bin/signal-desktop-darwin.nix b/pkgs/by-name/si/signal-desktop-bin/signal-desktop-darwin.nix
index 046a290cdf1e..1a6647bc8954 100644
--- a/pkgs/by-name/si/signal-desktop-bin/signal-desktop-darwin.nix
+++ b/pkgs/by-name/si/signal-desktop-bin/signal-desktop-darwin.nix
@@ -6,11 +6,11 @@
 }:
 stdenv.mkDerivation (finalAttrs: {
   pname = "signal-desktop-bin";
-  version = "7.47.0";
+  version = "7.51.0";
 
   src = fetchurl {
     url = "https://updates.signal.org/desktop/signal-desktop-mac-universal-${finalAttrs.version}.dmg";
-    hash = "sha256-PP8D6D/DJiONJp0UNUSoy8zDwWGVWRRMsqfPTWQCgs8=";
+    hash = "sha256-dUcBvKbGVsEUxOSv8u/jjuvYjHar2+zbv+/ZRS85w1w=";
   };
   sourceRoot = ".";