diff --git a/index.html b/index.html
index c31f6f3..66d538b 100644
--- a/index.html
+++ b/index.html
@@ -4947,7 +4947,7 @@ cowsay<span style="color: #bbbbbb"> </span><span style="color: #BA2121">&quot;He
       {
         <span style="color: #19177C">packages</span> <span style="color: #666666">=</span> <span style="color: #008000; font-weight: bold">rec</span> {
           <span style="color: #19177C">hello</span> <span style="color: #666666">=</span> pkgs<span style="color: #666666">.</span>stdenv<span style="color: #666666">.</span>mkDerivation <span style="color: #008000; font-weight: bold">rec</span> {
-<span style="background-color: #ffffcc">            <span style="color: #19177C">name</span> <span style="color: #666666">=</span> <span style="color: #BA2121">&quot;hello-flake&quot;</span>;
+<span style="background-color: #ffffcc">            <span style="color: #19177C">name</span> <span style="color: #666666">=</span> <span style="color: #BA2121">&quot;hello-with-cow&quot;</span>;
 </span>
             <span style="color: #19177C">src</span> <span style="color: #666666">=</span> ./.;
 
@@ -4958,8 +4958,8 @@ cowsay<span style="color: #bbbbbb"> </span><span style="color: #BA2121">&quot;He
             <span style="color: #19177C">installPhase</span> <span style="color: #666666">=</span>
               <span style="color: #BA2121">&#39;&#39;</span>
 <span style="color: #BA2121">                mkdir -p $out/bin</span>
-<span style="color: #BA2121">                cp $src/hello-flake $out/bin/hello-flake</span>
-<span style="color: #BA2121">                chmod +x $out/bin/hello-flake</span>
+<span style="color: #BA2121">                cp $src/hello-with-cow $out/bin</span>
+<span style="color: #BA2121">                chmod +x $out/bin/hello-with-cow</span>
 <span style="color: #BA2121">              &#39;&#39;</span>;
           };
           <span style="color: #19177C">default</span> <span style="color: #666666">=</span> hello;
@@ -4982,20 +4982,9 @@ cowsay<span style="color: #bbbbbb"> </span><span style="color: #BA2121">&quot;He
 <div class="content">
 <pre class="nowrap">$ nix run
 this derivation will be built:
-  /nix/store/k2w6258690zjhdf6y59vfpfiz7d67jb1-hello-flake.drv
-building '/nix/store/k2w6258690zjhdf6y59vfpfiz7d67jb1-hello-flake.drv'...
-error: builder for '/nix/store/k2w6258690zjhdf6y59vfpfiz7d67jb1-hello-flake.drv' failed with exit code 1;
-       last 8 log lines:
-       &gt; Running phase: unpackPhase
-       &gt; Running phase: patchPhase
-       &gt; Running phase: updateAutotoolsGnuConfigScriptsPhase
-       &gt; Running phase: configurePhase
-       &gt; no configure script, doing nothing
-       &gt; Running phase: buildPhase
-       &gt; Running phase: installPhase
-       &gt; cp: cannot stat '/nix/store/mhmgp4r3vihp0ar76ik7ah5q9djzhrdf-tempwork/hello-flake': No such file or directory
-       For full logs, run:
-         nix log /nix/store/k2w6258690zjhdf6y59vfpfiz7d67jb1-hello-flake.drv</pre>
+  /nix/store/bqk0dmm8ggj8q8d056q9bw9fdw5zw8l9-hello-with-cow.drv
+building '/nix/store/bqk0dmm8ggj8q8d056q9bw9fdw5zw8l9-hello-with-cow.drv'...
+/nix/store/xhv9yjsil2wsrnpbx07dlw3yb7hbr7fq-hello-with-cow/bin/hello-with-cow: line 3: cowsay: command not found</pre>
 </div>
 </div>
 <div class="paragraph">
@@ -5235,7 +5224,7 @@ Hello from your flake!</pre>
 </div>
 <div id="footer">
 <div id="footer-text">
-Last updated 2025-09-13 16:14:15 IST
+Last updated 2025-09-13 16:16:52 IST
 </div>
 </div>
 </body>
diff --git a/source/recipes/build/nixpkg/tempwork/flake.nix b/source/recipes/build/nixpkg/tempwork/flake.nix
index 63fbedd..a7cdcc9 100644
--- a/source/recipes/build/nixpkg/tempwork/flake.nix
+++ b/source/recipes/build/nixpkg/tempwork/flake.nix
@@ -26,6 +26,8 @@
                 cp $src/hello-with-cow $out/bin
                 chmod +x $out/bin/hello-with-cow
               '';
+
+            buildInputs = [ pkgs.cowsay ];
           };
           default = hello;
         };