diff --git a/shell.nix b/shell.nix
index 04f468553..51ff6c6c9 100644
--- a/shell.nix
+++ b/shell.nix
@@ -83,6 +83,8 @@ let
     unicode-transforms
     unix
     wai
+    wai-app-static
+    wai-cors
     wai-extra
     warp
     xml