diff --git a/nix/checks.nix b/nix/checks.nix
index c5d461f8..e9e01878 100644
--- a/nix/checks.nix
+++ b/nix/checks.nix
@@ -149,11 +149,7 @@ in
     version = "0.0.0";
     src = ../frontend;
 
-    # Same lockfile as `frontend`/`swarm-ui` above — reads the same
-    # `frontend/npm-deps-hash` file both of those do, so this stays in
-    # lockstep automatically. Regenerate that file with
-    # `prefetch-npm-deps frontend/package-lock.json` when the lockfile
-    # changes.
+    # See `nix/packages/frontend.nix`'s comment on the same line.
     npmDepsHash = builtins.readFile ../frontend/npm-deps-hash;
 
     buildPhase = ''
diff --git a/nix/packages/swarm-ui.nix b/nix/packages/swarm-ui.nix
index bf9ade44..6d750f43 100644
--- a/nix/packages/swarm-ui.nix
+++ b/nix/packages/swarm-ui.nix
@@ -34,8 +34,7 @@ buildNpmPackage {
   version = "0.0.0";
   src = ../../frontend;
 
-  # See `./frontend.nix`'s comment on the same line — one shared file,
-  # regenerate with `prefetch-npm-deps frontend/package-lock.json`.
+  # See `./frontend.nix`'s comment on the same line.
   npmDepsHash = builtins.readFile ../../frontend/npm-deps-hash;
 
   buildPhase = ''