diff --git a/overlays/default.nix b/overlays/default.nix
index 3c94185..a1cbec3 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -42,6 +42,7 @@
         sqlalchemy
         tenacity
         textual
+        tiktoken
         tinytuya
         typer
         websockets