diff --git a/modules/vendored/factorio.nix b/modules/vendored/factorio.nix
index 380cd9f..7f91c11 100644
--- a/modules/vendored/factorio.nix
+++ b/modules/vendored/factorio.nix
@@ -74,12 +74,12 @@ in
       };
 
       user = mkOption {
-        type = types.string;
+        type = types.str;
         default = "factorio";
       };
 
       group = mkOption {
-        type = types.string;
+        type = types.str;
         default = "factorio";
       };
 
diff --git a/modules/vendored/thelounge.nix b/modules/vendored/thelounge.nix
index 0a165e3..a14a459 100644
--- a/modules/vendored/thelounge.nix
+++ b/modules/vendored/thelounge.nix
@@ -29,7 +29,7 @@ in
     package = mkPackageOption pkgs "thelounge" { };
 
     dataDir = mkOption {
-      type = types.string;
+      type = types.str;
       default = "/var/lib/thelounge";
     };