diff --git a/packages/llama-cpp-nightly/ui.nix b/packages/llama-cpp-nightly/ui.nix
index 81b5d57..1dedbc7 100644
--- a/packages/llama-cpp-nightly/ui.nix
+++ b/packages/llama-cpp-nightly/ui.nix
@@ -17,7 +17,7 @@ buildNpmPackage (finalAttrs: {
 
   sourceRoot = "source/tools/ui";
 
-  npmDepsHash = lib.fakeHash;
+  npmDepsHash = "sha256-Po5SWJv3vmcBR7y62G9/CfvI3Lk/MYdjFMTTy2dsgoY=";
 
   installPhase = ''
     runHook preInstall