diff --git a/overlays/30-ghc.nix b/overlays/30-ghc.nix
index 6c88a73f..da19a637 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;
+        cabal2nix weeder stan;
     } // makeHaskellScriptPackages p;
 in {
   myHaskellPackages = makeHaskellPackages master.haskellPackages;
diff --git a/system/monitoring/nixpkgs.nix b/system/monitoring/nixpkgs.nix
index 825e99c2..90d15239 100644
--- a/system/monitoring/nixpkgs.nix
+++ b/system/monitoring/nixpkgs.nix
@@ -37,8 +37,6 @@ let
     "github"
     "cookie"
     "shelly"
-    "stan"
-    "weeder"
   ];
   watchedStablePkgs = [
     "ghcide"