diff --git a/pkgs/development/python-modules/voip-utils/default.nix b/pkgs/development/python-modules/voip-utils/default.nix
index 04e0eb2ede82..6cf7ebb9375d 100644
--- a/pkgs/development/python-modules/voip-utils/default.nix
+++ b/pkgs/development/python-modules/voip-utils/default.nix
@@ -9,14 +9,14 @@
 
 buildPythonPackage rec {
   pname = "voip-utils";
-  version = "0.2.0";
+  version = "0.2.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "home-assistant-libs";
     repo = "voip-utils";
-    rev = "refs/tags/${version}";
-    hash = "sha256-/DBBTL+t0VQJL43HgXGdhMHMKr8uBEkJ7Mf7Xp1mwhU=";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-ONvbkYP1hGMYOVZs5gvs/cr+Tde9gT3jloP6veqE/Ac=";
   };
 
   postPatch = ''
@@ -34,9 +34,6 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [ pytestCheckHook ];
 
-  # no tests as of v0.1.0
-  doCheck = false;
-
   meta = {
     changelog = "https://github.com/home-assistant-libs/voip-utils/blob/${src.rev}/CHANGELOG.md";
     description = "Voice over IP Utilities";
diff --git a/pkgs/servers/home-assistant/default.nix b/pkgs/servers/home-assistant/default.nix
index 818b834349af..f1fa3e4920cc 100644
--- a/pkgs/servers/home-assistant/default.nix
+++ b/pkgs/servers/home-assistant/default.nix
@@ -360,6 +360,8 @@ let
           rev = "refs/tags/v${version}";
           hash = "sha256-PG4L6KphH9JIZO76cCN8eClFE2CneEIExlXS+x79k3U=";
         };
+        # tests were not implemented until version 0.2.0
+        doCheck = false;
       });
 
       vulcan-api = super.vulcan-api.overridePythonAttrs (oldAttrs: rec {