diff --git a/modules/darwin/nix-core.nix b/modules/darwin/nix-core.nix
index 1f9b43a7..dde754c7 100644
--- a/modules/darwin/nix-core.nix
+++ b/modules/darwin/nix-core.nix
@@ -10,15 +10,10 @@
 
   # Fix: https://github.com/LnL7/nix-darwin/issues/149#issuecomment-1741720259
   # nix is installed via DeterminateSystems's nix-installer.
-  environment.etc."zshrc".knownSha256Hashes = [
-    "b9902f2020c636aeda956a74b5ae11882d53e206d1aa50b3abe591a8144fa710" # nix-installer on harmonica
-  ];
   environment.etc."bashrc".knownSha256Hashes = [
-    "53ab77cddb5c9aa2954efe42e9af0b8a2829f94dd31b6c33f8082ed194dcc0cb" # nix-installer on harmonica
     "6ffdf5a198ffe73fbcd17def767f52093b42b29149d4a3e911b49ebcb9785101" # nix-installer on fern
   ];
   environment.etc."zshenv".knownSha256Hashes = [
-    "bb96fe80a72ea9cd3291f09e4dc13a64e7db3b401f5889e43edc1fe34ed02d2c" # nix-installer on harmonica
     "0c544e42afe7836de9ba933d93f46043b12f58ae484ff8cfb02716353f1dba5f" # nix-installer on fern
   ];