diff --git a/pkgs/webview-ui/flake-module.nix b/pkgs/webview-ui/flake-module.nix
index 0fddc56e1..a35461625 100644
--- a/pkgs/webview-ui/flake-module.nix
+++ b/pkgs/webview-ui/flake-module.nix
@@ -14,12 +14,8 @@
 
         src = ./app;
 
-        npmDeps = pkgs.fetchNpmDeps {
-          src = ./app;
-          hash = "sha256-n9IXcfCpydykoYD+P/YNtNIwrvgJTZND0kg7oXBfmJ0=";
-        };
-        # The prepack script runs the build script, which we'd rather do in the build phase.
-        npmPackFlags = [ "--ignore-scripts" ];
+        npmDeps = pkgs.importNpmLock { npmRoot = ./app; };
+        npmConfigHook = pkgs.importNpmLock.npmConfigHook;
 
         preBuild = ''
           mkdir -p api