diff --git a/pkgs/by-name/vi/vivaldi-ffmpeg-codecs/package.nix b/pkgs/by-name/vi/vivaldi-ffmpeg-codecs/package.nix
index d9e83ed91b10..b232d3bd6ad1 100644
--- a/pkgs/by-name/vi/vivaldi-ffmpeg-codecs/package.nix
+++ b/pkgs/by-name/vi/vivaldi-ffmpeg-codecs/package.nix
@@ -25,7 +25,7 @@ in
 stdenv.mkDerivation (finalAttrs: {
   pname = "chromium-codecs-ffmpeg-extra";
 
-  version = "123075"; # Do not update by hand, use the update script
+  version = "0-unstable-2026-05-18"; # Do not update by hand, use the update script
 
   src = sources."${stdenv.hostPlatform.system}";
 
@@ -36,7 +36,7 @@ stdenv.mkDerivation (finalAttrs: {
   '';
 
   installPhase = ''
-    install -vD chromium-ffmpeg-${finalAttrs.version}/chromium-ffmpeg/libffmpeg.so $out/lib/libffmpeg.so
+    install -vD chromium-ffmpeg-git-${lib.removePrefix "0-unstable-" finalAttrs.version}/chromium-ffmpeg/libffmpeg.so $out/lib/libffmpeg.so
   '';
 
   passthru = {
@@ -54,6 +54,7 @@ stdenv.mkDerivation (finalAttrs: {
       cawilliamson
       fptje
       sarahec
+      brw
     ];
     platforms = [
       "x86_64-linux"
diff --git a/pkgs/by-name/vi/vivaldi-ffmpeg-codecs/update.sh b/pkgs/by-name/vi/vivaldi-ffmpeg-codecs/update.sh
index e22fe0a6bdc4..9e5041c4ca7e 100755
--- a/pkgs/by-name/vi/vivaldi-ffmpeg-codecs/update.sh
+++ b/pkgs/by-name/vi/vivaldi-ffmpeg-codecs/update.sh
@@ -9,19 +9,19 @@ STABLE_RELEASES=$(echo $RELEASES | jq '.["channel-map"] | .[] |  select(.channel
 
 function get_url() {
   local architecture=$1
-  echo $(echo $STABLE_RELEASES | jq -r '. | select(.arch=="'${architecture}'") | .url')
+  echo $STABLE_RELEASES | jq -r '. | select(.arch=="'${architecture}'") | .url'
 }
 
 # TODO If nix ever supports sha3-384, we can get that from the JSON and use it for the download hash
 function get_source() {
   local url=$1
   # returns the source path
-  echo $(nix-prefetch-url --print-path "$url" | tail -n 1)
+  nix-prefetch-url --print-path "$url" | tail -n 1
 }
 
 function max_version() {
   local source=$1
-  local versions="$(unsquashfs -l $source | awk -F- '$0 ~ "^squashfs-root/chromium-ffmpeg-[[:digit:]]+$" { print $NF }')"
+  local versions="$(unsquashfs -l $source | grep -Po '^squashfs-root/chromium-ffmpeg-git-\K[[:digit:]]{4}-[[:digit:]]{2}-[[:digit:]]{2}')"
   echo "$versions" | sort -V | tail -n 1
 }
 
@@ -32,16 +32,16 @@ function update_source() {
   local version=$4
   local source_hash=$(nix-hash --type sha256 --flat --base32 "$source")
   local hash=$(nix-hash --to-sri --type sha256 "$source_hash")
-  update-source-version vivaldi-ffmpeg-codecs $version $hash "$url" --ignore-same-version --system=$platform --source-key="sources.$platform"
+  update-source-version "vivaldi-ffmpeg-codecs" "$version" "$hash" "$url" --ignore-same-version --system=$platform --source-key="sources.$platform"
 }
 
-x86_url="$(get_url amd64)"
+x86_url="$(get_url "amd64")"
 x86_source="$(get_source ${x86_url})"
-x86_version="$(max_version ${x86_source})"
+x86_version="0-unstable-$(max_version ${x86_source})"
 
 arm64_url="$(get_url "arm64")"
 arm64_source="$(get_source ${arm64_url})"
-arm64_version="$(max_version ${arm64_source})"
+arm64_version="0-unstable-$(max_version ${arm64_source})"
 
 currentVersion=$(nix eval --raw -f . vivaldi-ffmpeg-codecs.version)
 
@@ -52,8 +52,8 @@ fi
 # If this fails too often, we can try using the lesser of the two versions for both
 # as the snap contains the last 4-5 versions.
 if [[ "$x86_version" != "$arm64_version" ]]; then
-    >&2 echo "Multiple chromium versions found: $x86_version (intel) and $arm64_version (arm); no update"
-    exit 1
+  >&2 echo "Multiple chromium versions found: $x86_version (intel) and $arm64_version (arm); no update"
+  exit 1
 fi
 
 update_source "x86_64-linux" "$x86_url" "$x86_source" "$x86_version"