diff --git a/flake.nix b/flake.nix
index 4358e70..7268038 100644
--- a/flake.nix
+++ b/flake.nix
@@ -87,7 +87,7 @@
       buildPhase = ''
         runHook preBuild
 
-        yarn install --immutable-cache # --immutable
+        yarn install --immutable --immutable-cache
         yarn build
         yarn workspaces focus --all --production