diff --git a/pkgs/development/python-modules/python-duco-connectivity/default.nix b/pkgs/development/python-modules/python-duco-connectivity/default.nix
index 43d89bb9f22a..987422109bdd 100644
--- a/pkgs/development/python-modules/python-duco-connectivity/default.nix
+++ b/pkgs/development/python-modules/python-duco-connectivity/default.nix
@@ -12,14 +12,14 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "python-duco-connectivity";
-  version = "0.6.0";
+  version = "0.5.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "ronaldvdmeer";
     repo = "python-duco-connectivity";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-4lXK5os7OddLJUW+iBOFM8h1RniDMugt3FMhwaGh0e8=";
+    hash = "sha256-AH8EhC0v8GDNvPSUaTownV9d4upvKRiO//2sipGHz9g=";
   };
 
   build-system = [ setuptools ];
diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index 71b1cac92d68..c2d93b967fee 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -1494,7 +1494,8 @@
       ];
     "duco" =
       ps: with ps; [
-      ]; # missing inputs: python-duco-connectivity
+        python-duco-connectivity
+      ];
     "dunehd" =
       ps: with ps; [
         pdunehd
@@ -7923,6 +7924,7 @@
     "dsmr"
     "dsmr_reader"
     "duckdns"
+    "duco"
     "dunehd"
     "duotecno"
     "dwd_weather_warnings"