diff --git a/flake.nix b/flake.nix
index 2d3384c0..c21fc233 100644
--- a/flake.nix
+++ b/flake.nix
@@ -60,6 +60,7 @@
               openssl.dev
             ] ++ lib.optionals stdenv.isDarwin [
               libiconv
+              darwin.apple_sdk.frameworks.Security
             ];
             checkInputs = [
               inputs'.csprpkgs.packages.cctl