diff --git a/pkgs/development/python-modules/pymyq/default.nix b/pkgs/development/python-modules/pymyq/default.nix
index f4b4a1b79207..e93d0b602b4d 100644
--- a/pkgs/development/python-modules/pymyq/default.nix
+++ b/pkgs/development/python-modules/pymyq/default.nix
@@ -8,13 +8,13 @@
 
 buildPythonPackage rec {
   pname = "pymyq";
-  version = "3.0.0";
+  version = "3.0.3";
 
   src = fetchFromGitHub {
     owner = "arraylabs";
     repo = pname;
     rev = "v${version}";
-    sha256 = "sha256-uCXgJxMy5gZQBvhHnmfev/rfJXOjhLqZdOrn8SetUT0=";
+    sha256 = "1wrfnbz87ns2ginyvljna0axl35s0xfaiqwzapxm8ira40ax5wrl";
   };
 
   propagatedBuildInputs = [
diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index 2f97cb4a9684..d8bca0f55179 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 = "2021.2.2";
+  version = "2021.2.3";
   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 bb697d1035ad..fae857fda5dc 100644
--- a/pkgs/servers/home-assistant/default.nix
+++ b/pkgs/servers/home-assistant/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, nixosTests, lib, fetchurl, fetchFromGitHub, fetchpatch, python3, protobuf3_6
+{ stdenv, nixosTests, lib, fetchFromGitHub, python3
 
 # Look up dependencies of specified components in component-packages.nix
 , extraComponents ? [ ]
@@ -57,7 +57,7 @@ let
   extraBuildInputs = extraPackages py.pkgs;
 
   # Don't forget to run parse-requirements.py after updating
-  hassVersion = "2021.2.2";
+  hassVersion = "2021.2.3";
 
 in with py.pkgs; buildPythonApplication rec {
   pname = "homeassistant";
@@ -76,7 +76,7 @@ in with py.pkgs; buildPythonApplication rec {
     owner = "home-assistant";
     repo = "core";
     rev = version;
-    sha256 = "0y7yj3kwk2454yghslvv5s2783rch9pznhxrw4mh3plr6qzi70rp";
+    sha256 = "0s1jcd94wwvmvzq86w8s9dwfvnmjs9l661z9pc6kwgagggjjgd8c";
   };
 
   # leave this in, so users don't have to constantly update their downstream patch handling
@@ -181,7 +181,8 @@ in with py.pkgs; buildPythonApplication rec {
   ];
 
   pytestFlagsArray = [
-    "-n auto"
+    # limit amout of runners to reduce race conditions
+    "-n 2"
     # assign tests grouped by file to workers
     "--dist loadfile"
     # don't bulk test all components
@@ -199,10 +200,6 @@ in with py.pkgs; buildPythonApplication rec {
     # keyring.errors.NoKeyringError: No recommended backend was available.
     "test_secrets_from_unrelated_fails"
     "test_secrets_credstash"
-    # system_log/test_init.py: assert 0 == 1 where 0 = len([])
-    "test_error_posted_as_event"
-    # ssdp/test_init.py: RuntimeError: Event loop is closed
-    "test_scan_match_st"
   ];
 
   preCheck = ''