diff --git a/overlays/30-ghc.nix b/overlays/30-ghc.nix
index da19a637..6c88a73f 100644
--- a/overlays/30-ghc.nix
+++ b/overlays/30-ghc.nix
@@ -12,7 +12,7 @@ let
       inherit (p)
         brittany ormolu releaser cabal-fmt stack ghcide cabal-install dhall
         aeson unordered-containers these neuron taskwarrior pandoc hlint
-        cabal2nix weeder stan;
+        cabal2nix weeder;
     } // makeHaskellScriptPackages p;
 in {
   myHaskellPackages = makeHaskellPackages master.haskellPackages;
diff --git a/system/monitoring/nixpkgs.nix b/system/monitoring/nixpkgs.nix
index 90d15239..9e086fde 100644
--- a/system/monitoring/nixpkgs.nix
+++ b/system/monitoring/nixpkgs.nix
@@ -37,6 +37,7 @@ let
     "github"
     "cookie"
     "shelly"
+    "stan"
   ];
   watchedStablePkgs = [
     "ghcide"