diff --git a/flake.nix b/flake.nix
index a6da048..26e860c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,7 +11,7 @@
       flake = false;
     };
     extra-package-nix-ts-mode = {
-      url = "github:aciceri/nix-ts-mode/improved";
+      url = "github:antifuchs/nix-ts-mode/improve-indented-string-indentation";
       flake = false;
     };
     extra-package-combobulate = {
diff --git a/packages/packages.nix b/packages/packages.nix
index 3ac4b8d..b29ac86 100644
--- a/packages/packages.nix
+++ b/packages/packages.nix
@@ -96,6 +96,7 @@ pkgs: epkgs: let
       notmuch
       consult-notmuch
       poly-org
+      casual
     ]) ++ (with elpaPackages; [
       delight
       kind-icon