diff --git a/nix/overlays/agenix.nix b/nix/overlays/agenix.nix
index 952db8d7..e89a4ad7 100644
--- a/nix/overlays/agenix.nix
+++ b/nix/overlays/agenix.nix
@@ -1,6 +1,9 @@
 let
   sources = import ../../npins;
+  inherit (sources) agenix;
+  inherit (agenix.repository) owner repo;
 in
   final: _: {
-    inherit (final.callPackage sources.agenix {}) agenix;
+    # Use flake so the package inputs is pinned
+    agenix = (builtins.getFlake "github:${owner}/${repo}/${agenix.revision}").packages.${final.system}.default;
   }