diff --git a/flake.nix b/flake.nix
index 0fe4f8f..de365b3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -6,10 +6,10 @@
 
   outputs = { self, nixpkgs, flake-utils }: {
     overlays.default = final: prev: rec {
-      vid = prev.stdenv.mkDerivation {
+      vid = final.stdenv.mkDerivation {
         name = "kyouma-www-vid";
         src = ./.;
-        buildInputs = [ prev.yt-dlp ];
+        buildInputs = [ final.yt-dlp ];
         buildPhase = ''
           yt-dlp -f 136+251 C4oApBlw7Gc --merge-output-format mp4 -o "media/sunnyday-avc.mp4"
           yt-dlp -f 398+251 C4oApBlw7Gc --merge-output-format mp4 -o "media/sunnyday-av1.mp4"
@@ -19,7 +19,7 @@
         outputHashAlgo = "sha256";
         outputHash = "abrls86wyBJaZN3QM/p8fRoGQ7jVseao3F4oiMPh+84=";
       };
-      kyouma-www = prev.stdenv.mkDerivation {
+      kyouma-www = final.stdenv.mkDerivation {
         pname = "kyouma-www";
         version = self.shortRev or (toString self.lastModifiedDate); 
         src = ./.;