diff --git a/pkgs/by-name/si/signal-desktop-bin/update.sh b/pkgs/by-name/si/signal-desktop-bin/update.sh
index 408624617ada..7d3696642b58 100755
--- a/pkgs/by-name/si/signal-desktop-bin/update.sh
+++ b/pkgs/by-name/si/signal-desktop-bin/update.sh
@@ -17,7 +17,7 @@ latestBuildAarch64=$(jq '.id' <<< $latestBuildInfoAarch64)
 latestVersionAarch64=$(jq -r '.source_package.version' <<< $latestBuildInfoAarch64)
 latestPrettyVersionAarch64="${latestVersionAarch64%-*}"
 
-darwinHash="$(nix --extra-experimental-features nix-command hash convert --hash-algo sha256 --to sri "$(nix-prefetch-url "https://updates.signal.org/desktop/signal-desktop-mac-universal-${latestVersion}.dmg")")"
+darwinHash="$(nix --extra-experimental-features nix-command hash to-sri --type sha256 "$(nix-prefetch-url "https://updates.signal.org/desktop/signal-desktop-mac-universal-${latestVersion}.dmg")")"
 
 echo "Updating signal-desktop for x86_64-linux"
 update-source-version signal-desktop-bin "$latestVersion" \