diff --git a/services/home-assistant/default.nix b/services/home-assistant/default.nix
index ff7a758..aa77a06 100644
--- a/services/home-assistant/default.nix
+++ b/services/home-assistant/default.nix
@@ -14,6 +14,7 @@
         gtts
         isal
         paho-mqtt
+        prometheus-client
         pykodi
         python-roborock
         radios