diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index cdd00d07d86..fd0d808feea 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -2,7 +2,7 @@
 # Do not edit!
 
 {
-  version = "2021.5.0";
+  version = "2021.5.1";
   components = {
     "abode" = ps: with ps; [ abodepy ];
     "accuweather" = ps: with ps; [ accuweather ];
diff --git a/pkgs/servers/home-assistant/default.nix b/pkgs/servers/home-assistant/default.nix
index f61040ae939..2a83f1432b6 100644
--- a/pkgs/servers/home-assistant/default.nix
+++ b/pkgs/servers/home-assistant/default.nix
@@ -105,7 +105,7 @@ let
   extraBuildInputs = extraPackages py.pkgs;
 
   # Don't forget to run parse-requirements.py after updating
-  hassVersion = "2021.5.0";
+  hassVersion = "2021.5.1";
 
 in with py.pkgs; buildPythonApplication rec {
   pname = "homeassistant";
@@ -124,7 +124,7 @@ in with py.pkgs; buildPythonApplication rec {
     owner = "home-assistant";
     repo = "core";
     rev = version;
-    sha256 = "1kwx0bq2i76p9gbx5kkzkjxd88vzf2daccm0wf123693isk1nwzs";
+    sha256 = "0bipjfkz4zqhy84jgrn3qxvs4nxya3j08lcsq3xa31xfz8wnpxwj";
   };
 
   # leave this in, so users don't have to constantly update their downstream patch handling