diff --git a/pkgs/applications/networking/browsers/vivaldi/default.nix b/pkgs/applications/networking/browsers/vivaldi/default.nix
index 0d59b67c2162..c917ba5d3498 100644
--- a/pkgs/applications/networking/browsers/vivaldi/default.nix
+++ b/pkgs/applications/networking/browsers/vivaldi/default.nix
@@ -20,11 +20,11 @@ let
   vivaldiName = if isSnapshot then "vivaldi-snapshot" else "vivaldi";
 in stdenv.mkDerivation rec {
   pname = "vivaldi";
-  version = "5.3.2679.70-1";
+  version = "5.4.2753.33-1";
 
   src = fetchurl {
     url = "https://downloads.vivaldi.com/${branch}/vivaldi-${branch}_${version}_amd64.deb";
-    sha256 = "0mcq3nbbjw5x2gjah6hbbiv233bxwi68y7nziyqpp9d6nd2pixjn";
+    sha256 = "0bs6324m5l5vmg1x1sj6g3qb1958c5c8z35r87r3rpnv52lqr501";
   };
 
   unpackPhase = ''
diff --git a/pkgs/applications/networking/browsers/vivaldi/ffmpeg-codecs.nix b/pkgs/applications/networking/browsers/vivaldi/ffmpeg-codecs.nix
index e9228493de3e..a49f2fe1307a 100644
--- a/pkgs/applications/networking/browsers/vivaldi/ffmpeg-codecs.nix
+++ b/pkgs/applications/networking/browsers/vivaldi/ffmpeg-codecs.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "chromium-codecs-ffmpeg-extra";
-  version = "103.0.5060.53";
+  version = "104.0.5112.79";
 
   src = fetchurl {
-    url = "https://launchpadlibrarian.net/607589056/${pname}_${version}-0ubuntu0.18.04.1_amd64.deb";
-    sha256 = "sha256-Tsp5Y6sCn+mKrLGZSAWGFoSTHiyfANQ5VA7pesU1HyU=";
+    url = "https://launchpadlibrarian.net/616178945/${pname}_${version}-0ubuntu0.18.04.1_amd64.deb";
+    sha256 = "sha256-JL14+2TsX1qXfRpA/tAADC0iujPj37ld6T9yPUD8R38=";
   };
 
   buildInputs = [ dpkg ];
diff --git a/pkgs/applications/networking/browsers/vivaldi/update.sh b/pkgs/applications/networking/browsers/vivaldi/update.sh
index caf9148805cd..ab072340173a 100755
--- a/pkgs/applications/networking/browsers/vivaldi/update.sh
+++ b/pkgs/applications/networking/browsers/vivaldi/update.sh
@@ -37,7 +37,7 @@ git commit -m "vivaldi: ${vivaldi_version_old} -> ${vivaldi_version}"
 # Check vivaldi-ffmpeg-codecs version.
 chromium_version_old=$(version vivaldi-ffmpeg-codecs)
 ffmpeg_update_script=$(bsdtar xOf "$path" data.tar.xz | bsdtar xOf - ./opt/vivaldi/update-ffmpeg)
-chromium_version=$(sed -rne 's/FFMPEG_VERSION_DEB\=([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+).*/\1/p' <<< $ffmpeg_update_script)
+chromium_version=$(sed -rne 's/^FFMPEG_VERSION_DEB\=([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+).*/\1/p' <<< $ffmpeg_update_script)
 download_subdir=$(sed -rne 's/.*FFMPEG_URL_DEB\=https:\/\/launchpadlibrarian\.net\/([0-9]+)\/.*_amd64\.deb/\1/p' <<< $ffmpeg_update_script)
 
 if [[ "$chromium_version" != "$chromium_version_old" ]]; then