diff --git a/modules/system/meta/domains.nix b/modules/system/meta/domains.nix
index ff52f18..186c980 100644
--- a/modules/system/meta/domains.nix
+++ b/modules/system/meta/domains.nix
@@ -41,7 +41,7 @@ in
               inherit domain;
             })
           )
-          |> lib.groupBy (entry: toString entry.domain)
+          |> builtins.groupBy (entry: toString entry.domain)
           |> lib.mapAttrs (_: values: values |> lib.map (value: value.file))
           |> lib.filterAttrs (_: files: lib.length files > 1);
 
diff --git a/modules/system/meta/ports.nix b/modules/system/meta/ports.nix
index 739161c..f36622c 100644
--- a/modules/system/meta/ports.nix
+++ b/modules/system/meta/ports.nix
@@ -35,7 +35,7 @@ in
               inherit port;
             })
           )
-          |> lib.groupBy (entry: toString entry.port)
+          |> builtins.groupBy (entry: toString entry.port)
           |> lib.mapAttrs (_: values: values |> lib.map (value: value.file))
           |> lib.filterAttrs (_: files: lib.length files > 1);
 
diff --git a/modules/system/services/caddy.nix b/modules/system/services/caddy.nix
index aff9eff..0f073ad 100644
--- a/modules/system/services/caddy.nix
+++ b/modules/system/services/caddy.nix
@@ -142,7 +142,7 @@ in
           '';
           virtualHosts =
             nonTailscaleHosts
-            |> lib.groupBy (value: lib'.rootDomainOf value.domain)
+            |> builtins.groupBy (value: lib'.rootDomainOf value.domain)
             |> lib.mapAttrs' mkWildCardDomain;
         };
       })